Electronic device for adjusting transmission power based on sar and method for operating same

ABSTRACT

An electronic device according to various embodiments may include: at least one antenna; and at least one communication processor configured to support first network communication with a first network and second network communication with a second network different from the first network. The at least one communication processor may be configured to: identify a first cumulative SAR value based on radiation of a communication signal corresponding to the first network communication via a first part of the at least one antenna and a second cumulative SAR value based on radiation of a communication signal corresponding to the second network communication via a second part of the at least one antenna; and adjust one of a transmission intensity of a first communication signal corresponding to the first network communication or a transmission intensity of a second communication signal corresponding to the second network communication, based on a designated condition satisfied by the first cumulative SAR value and the second cumulative SAR value.

CROSS-REFERENCE TO RELATED APPLICATION

This application is based on and claims priority under 35 U.S.C. §119 toKorean Patent Application No. 10-2019-0099812, filed on August 14, 2019,in the Korean Intellectual Property Office, the disclosure of which isincorporated by reference herein in its entirety.

BACKGROUND Field

The disclosure relates to an electronic device for adjustingtransmission power based on a specific absorption rate (SAR) and amethod for operating the same.

Description of Related Art

User equipment (UE) may transmit electromagnetic waves in order totransmit/receive data with a base station. The electromagnetic wavesradiated by the UE may adversely affect human bodies, and variousdomestic/overseas institutions attempt to limit such electromagneticwaves that have a hazardous effect on human bodies. For example, aspecific absorption rate (SAR) refers to a numerical value indicatingthe degree of absorption of electromagnetic waves radiated from mobilecommunications terminal into human bodies. The SAR employs a unit of W/g(or mW/g), which may refer to the amount of electric power (W or mW)absorbed per 1 g of human body. Standards for limiting the SAR inconnection with mobile communication terminals have been established inline with the attention to adverse influences of electromagnetic waveson human bodies.

The UE may back off transmission power if it is predicted, for example,that a predicted SAR will exceed a threshold value, due to thetransmission power. For example, if occurrence of a specific event (forexample, grip, hot spot, or proxy) is identified, the UE may transmit acommunication signal using backoff power corresponding to the event.

As described above, if it is predicted that a predicted SAR at aspecific timepoint will exceed the threshold SAR, the UE may run analgorithm that backs off the transmission power. However, no technologyfor backing off transmission power based on the total amount of SARvalue cumulative during a specific time has been disclosed. Not onlySARs that immediately affect human bodies, but also SARs that affecthuman bodies on an average basis need to be taken into account.Accordingly, it is expected that, in the future, a technology forbacking off transmission power based on an cumulative SAR or an averageSAR will be developed.

SUMMARY

Embodiments of the disclosure provide an electronic device capable ofidentifying whether to back off transmission power based on ancumulative SAR value, and a method for operating the same.

An electronic device according to various example embodiments mayinclude: at least one antenna; and at least one communication processorconfigured to support first network communication with a first networkand second network communication with a second network different fromthe first network. The at least one communication processor may beconfigured to: identify a first cumulative specific absorption rate(SAR) value based on radiation of a communication signal correspondingto the first network communication via a first part of the at least oneantenna and a second cumulative SAR value based on radiation of acommunication signal corresponding to the second network communicationvia a second part of the at least one antenna; and adjust one of atransmission intensity of a first communication signal corresponding tothe first network communication or a transmission intensity of a secondcommunication signal corresponding to the second network communicationbased on a designated condition satisfied by the first cumulative SARvalue and the second cumulative SAR value.

An electronic device according to various example embodiments mayinclude at least one communication processor configured to support firstnetwork communication with a first network and second networkcommunication with a second network different from the first network.The at least one communication processor may be configured to: receive,from a base station corresponding to the first network communication, areport condition instructing transmission of a communication signal fromat least one peripheral base station corresponding to the second networkcommunication; identify that a communication signal from a first basestation among peripheral base stations corresponding to the secondnetwork communication satisfies the report condition; and identifywhether to perform a measurement report corresponding to the first basestation based on a first cumulative SAR value resulting from radiationof a communication signal corresponding to the first networkcommunication.

An electronic device according to various example embodiments mayinclude: at least one antenna; a Wi-Fi communication module comprisingcircuitry configured to perform Wi-Fi communication with an externalelectronic device; and at least one communication processor configuredto support first network communication with a first network and secondnetwork communication with a second network different from the firstnetwork. The at least one communication processor may be configured to:identify a first SAR margin configured in the Wi-Fi communication modulebased on activation of a Wi-Fi hot spot function using the Wi-Ficommunication module; identify a first cumulative SAR value based onradiation of a communication signal corresponding to the first networkcommunication via a first part of the at least one antenna and a secondcumulative SAR value based on radiation of a communication signalcorresponding to the second network communication via a second part ofthe at least one antenna; and determine a transmission intensity of thecommunication signal corresponding to the first network communicationand a transmission intensity of the communication signal correspondingto the second network communication based on the first cumulative SARvalue, the second cumulative SAR value, and the first SAR margin.

According to various example embodiments, an electronic device capableof identifying whether to back off transmission power, based on ancumulative SAR value, and a method for operating the same, may beprovided. Accordingly, the average SAR may not exceed a thresholdaverage value, thereby improving the user's safety.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments the present disclosure will be more apparent from thefollowing detailed description, taken in conjunction with theaccompanying drawings, in which:

FIG. 1 is a block diagram illustrating an example electronic device in anetwork environment according to various embodiments;

FIG. 2A is a block diagram illustrating an example electronic device forsupporting network communication and 5G network communication accordingto various embodiments;

FIG. 2B is a block diagram illustrating an example electronic device forsupporting network communication and 5G network communication accordingto various embodiments;

FIG. 3 is a diagram illustrating example wireless communication systemsproviding networks for legacy communication and/or 5G communicationaccording to various embodiments;

FIG. 4 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 5 is a diagram including graphs illustrating an example backoffprocess based on an cumulative SAR value according to variousembodiments;

FIG. 6A is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 6B is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 7 is a diagram including graphs illustrating an example backoffprocess based on an cumulative SAR value according to variousembodiments;

FIG. 8A is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 8B is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 9A is a graph illustrating example time-specific transmissionintensities according to various embodiments;

FIG. 9B is a graph illustrating example time-specific transmissionintensities according to various embodiments;

FIG. 9C is a graph illustrating example time-specific transmissionintensities according to various embodiments;

FIG. 9D is a table and graph illustrating example time-specifictransmission intensities according to various embodiments;

FIG. 9E is a table an graph illustrating example time-specifictransmission intensities according to various embodiments;

FIG. 10 is a flowchart illustrating example operations of updating atable and identifying whether a determination criterion in the table issatisfied, according to various embodiments;

FIG. 11 is a diagram illustrating examples of the maximum use of SARduring a backoff with regard to each table;

FIG. 12 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 13 is a graph illustrating example transmission intensitiesaccording to various embodiments;

FIG. 14 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 15 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 16 is a graph illustrating example transmission intensity and ancumulative SAR according to various embodiments;

FIG. 17 is a diagram illustrating an example SAR margin of LTE accordingto various embodiments;

FIG. 18A is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 18B is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 19A is a diagram including graphs illustrating example backoff whenan electronic device according to various embodiments performs VoLTE;

FIG. 19B is a diagram illustrating an example LTE SAR margin and a VoLTESAR margin according to various embodiments;

FIG. 20 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 21 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 22 is a diagram illustrating an example amount of used SAR and amargin according to various embodiments;

FIG. 23 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 24 is a diagram illustrating an example amount of used SAR and amargin, which are identified according to various embodiments;

FIG. 25 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments;

FIG. 26A is a diagram including graphs illustrating example backoffbased on consideration of an cumulative SAR according to variousembodiments;

FIG. 26B is a diagram including graphs illustrating example backoffbased on consideration of an cumulative SAR according to variousembodiments;

FIG. 26C is a diagram including graphs illustrating example backoffbased on consideration of an cumulative SAR according to variousembodiments;

FIG. 27A is a diagram illustrating example baseband processing accordingto various embodiments;

FIG. 27B is a diagram illustrating example baseband processing accordingto various embodiments;

FIG. 27C is a diagram illustrating example baseband processing accordingto various embodiments;

FIG. 27D is a diagram illustrating example baseband processing accordingto various embodiments; and

FIG. 27E is a diagram illustrating example baseband processing accordingto various embodiments.

DETAILED DESCRIPTION

FIG. 1 is a block diagram illustrating an example electronic device 101in a network environment 100 according to various embodiments. Referringto FIG. 1, the electronic device 101 in the network environment 100 maycommunicate with an electronic device 102 via a first network 198 (e.g.,a short-range wireless communication network), or an electronic device104 or a server 108 via a second network 199 (e.g., a long-rangewireless communication network). According to an embodiment, theelectronic device 101 may communicate with the electronic device 104 viathe server 108. According to an embodiment, the electronic device 101may include a processor 120, memory 130, an input device 150, a soundoutput device 155, a display device 160, an audio module 170, a sensormodule 176, an interface 177, a haptic module 179, a camera module 180,a power management module 188, a battery 189, a communication module190, a subscriber identification module (SIM) 196, or an antenna module197. In some embodiments, at least one (e.g., the display device 160 orthe camera module 180) of the components may be omitted from theelectronic device 101, or one or more other components may be added inthe electronic device 101. In some embodiments, some of the componentsmay be implemented as single integrated circuitry. For example, thesensor module 176 (e.g., a fingerprint sensor, an iris sensor, or anilluminance sensor) may be implemented as embedded in the display device160 (e.g., a display).

The processor 120 may execute, for example, software (e.g., a program140) to control at least one other component (e.g., a hardware orsoftware component) of the electronic device 101 coupled with theprocessor 120, and may perform various data processing or computation.According to an example embodiment, as at least part of the dataprocessing or computation, the processor 120 may load a command or datareceived from another component (e.g., the sensor module 176 or thecommunication module 190) in volatile memory 132, process the command orthe data stored in the volatile memory 132, and store resulting data innon-volatile memory 134. According to an embodiment, the processor 120may include a main processor 121 (e.g., a central processing unit (CPU)or an application processor (AP)), and an auxiliary processor 123 (e.g.,a graphics processing unit (GPU), an image signal processor (ISP), asensor hub processor, or a communication processor (CP)) that isoperable independently from, or in conjunction with, the main processor121. Additionally or alternatively, the auxiliary processor 123 may beadapted to consume less power than the main processor 121, or to bespecific to a specified function. The auxiliary processor 123 may beimplemented as separate from, or as part of the main processor 121.

The auxiliary processor 123 may control at least some of functions orstates related to at least one component (e.g., the display device 160,the sensor module 176, or the communication module 190) among thecomponents of the electronic device 101, instead of the main processor121 while the main processor 121 is in an inactive (e.g., sleep) state,or together with the main processor 121 while the main processor 121 isin an active (e.g., executing an application) state. According to anembodiment, the auxiliary processor 123 (e.g., an image signal processoror a communication processor) may be implemented as part of anothercomponent (e.g., the camera module 180 or the communication module 190)functionally related to the auxiliary processor 123.

The memory 130 may store various data used by at least one component(e.g., the processor 120 or the sensor module 176) of the electronicdevice 101. The various data may include, for example, software (e.g.,the program 140) and input data or output data for a command relatedthereto. The memory 130 may include the volatile memory 132 or thenon-volatile memory 134.

The program 140 may be stored in the memory 130 as software, and mayinclude, for example, an operating system (OS) 142, middleware 144, oran application 146.

The input device 150 may receive a command or data to be used by othercomponent (e.g., the processor 120) of the electronic device 101, fromthe outside (e.g., a user) of the electronic device 101. The inputdevice 150 may include, for example, a microphone, a mouse, a keyboard,or a digital pen (e.g., a stylus pen).

The sound output device 155 may output sound signals to the outside ofthe electronic device 101. The sound output device 155 may include, forexample, a speaker or a receiver. The speaker may be used for generalpurposes, such as playing multimedia or playing record, and the receivermay be used for incoming calls. According to an embodiment, the receivermay be implemented as separate from, or as part of the speaker.

The display device 160 may visually provide information to the outside(e.g., a user) of the electronic device 101. The display device 160 mayinclude, for example, a display, a hologram device, or a projector andcontrol circuitry to control a corresponding one of the display,hologram device, and projector. According to an embodiment, the displaydevice 160 may include touch circuitry adapted to detect a touch, orsensor circuitry (e.g., a pressure sensor) adapted to measure theintensity of force incurred by the touch.

The audio module 170 may convert a sound into an electrical signal andvice versa. According to an embodiment, the audio module 170 may obtainthe sound via the input device 150, or output the sound via the soundoutput device 155 or an external electronic device (e.g., an electronicdevice 102 (e.g., a speaker or a headphone)) directly or wirelesslycoupled with the electronic device 101.

The sensor module 176 may detect an operational state (e.g., power ortemperature) of the electronic device 101 or an environmental state(e.g., a state of a user) external to the electronic device 101, andthen generate an electrical signal or data value corresponding to thedetected state. According to an embodiment, the sensor module 176 mayinclude, for example, a gesture sensor, a gyro sensor, an atmosphericpressure sensor, a magnetic sensor, an acceleration sensor, a gripsensor, a proximity sensor, a color sensor, an infrared (IR) sensor, abiometric sensor, a temperature sensor, a humidity sensor, or anilluminance sensor.

The interface 177 may support one or more specified protocols to be usedfor the electronic device 101 to be coupled with the external electronicdevice (e.g., the electronic device 102) directly or wirelessly.According to an embodiment, the interface 177 may include, for example,a high definition multimedia interface (HDMI), a universal serial bus(USB) interface, a secure digital (SD) card interface, or an audiointerface.

A connecting terminal 178 may include a connector via which theelectronic device 101 may be physically connected with the externalelectronic device (e.g., the electronic device 102). According to anembodiment, the connecting terminal 178 may include a HDMI connector, aUSB connector, a SD card connector, or an audio connector (e.g., aheadphone connector).

The haptic module 179 may convert an electrical signal into a mechanicalstimulus (e.g., a vibration or a movement) or electrical stimulus whichmay be recognized by a user via his tactile sensation or kinestheticsensation. According to an embodiment, the haptic module 179 mayinclude, for example, a motor, a piezoelectric element, or an electricstimulator.

The camera module 180 may capture a still image or moving images.According to an embodiment, the camera module 180 may include one ormore lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to theelectronic device 101. According to an example embodiment, the powermanagement module 188 may be implemented as at least part of, forexample, a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of theelectronic device 101. According to an embodiment, the battery 189 mayinclude, for example, a primary cell which is not rechargeable, asecondary cell which is rechargeable, or a fuel cell.

The communication module 190 may support establishing a direct (e.g.,wired) communication channel or a wireless communication channel betweenthe electronic device 101 and the external electronic device (e.g., theelectronic device 102, the electronic device 104, or the server 108) andperforming communication via the established communication channel. Thecommunication module 190 may include one or more communicationprocessors that are operable independently from the processor 120 (e.g.,the application processor (AP)) and supports a direct (e.g., wired)communication or a wireless communication. According to an embodiment,the communication module 190 may include a wireless communication module192 (e.g., a cellular communication module, a short-range wirelesscommunication module, or a global navigation satellite system (GNSS)communication module) or a wired communication module 194 (e.g., a localarea network (LAN) communication module or a power line communication(PLC) module). A corresponding one of these communication modules maycommunicate with the external electronic device via the first network198 (e.g., a short-range communication network, such as Bluetooth™,wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA))or the second network 199 (e.g., a long-range communication network,such as a cellular network, the Internet, or a computer network (e.g.,LAN or wide area network (WAN)). These various types of communicationmodules may be implemented as a single component (e.g., a single chip),or may be implemented as multi components (e.g., multi chips) separatefrom each other. The wireless communication module 192 may identify andauthenticate the electronic device 101 in a communication network, suchas the first network 198 or the second network 199, using subscriberinformation (e.g., international mobile subscriber identity (IMSI))stored in the subscriber identification module 196.

The antenna module 197 may transmit or receive a signal or power to orfrom the outside (e.g., the external electronic device) of theelectronic device 101. According to an embodiment, the antenna modulemay include an antenna including a radiating element including aconductive material or a conductive pattern formed in or on a substrate(e.g., PCB). According to an embodiment, the antenna module 197 mayinclude a plurality of antennas. In such a case, at least one antennaappropriate for a communication scheme used in the communicationnetwork, such as the first network 198 or the second network 199, may beselected, for example, by the communication module 190 from theplurality of antennas. The signal or the power may then be transmittedor received between the communication module 190 and the externalelectronic device via the selected at least one antenna. According to anembodiment, another component (e.g., a radio frequency integratedcircuit (RFIC)) other than the radiating element may be additionallyformed as part of the antenna module 197.

At least some of the above-described components may be coupled mutuallyand communicate signals (e.g., commands or data) therebetween via aninter-peripheral communication scheme (e.g., a bus, general purposeinput and output (GPIO), serial peripheral interface (SPI), or mobileindustry processor interface (MIPI)).

According to an embodiment, commands or data may be transmitted orreceived between the electronic device 101 and the external electronicdevice 104 via the server 108 coupled with the second network 199. Eachof the electronic devices 102 and 104 may be a device of a same type as,or a different type, from the electronic device 101. According to anembodiment, all or some of operations to be executed at the electronicdevice 101 may be executed at one or more of the external electronicdevices 102, 104, or 108. For example, if the electronic device 101should perform a function or a service automatically, or in response toa request from a user or another device, the electronic device 101,instead of, or in addition to, executing the function or the service,may request the one or more external electronic devices to perform atleast part of the function or the service. The one or more externalelectronic devices receiving the request may perform the at least partof the function or the service requested, or an additional function oran additional service related to the request, and transfer an outcome ofthe performing to the electronic device 101. The electronic device 101may provide the outcome, with or without further processing of theoutcome, as at least part of a reply to the request. To that end, acloud computing, distributed computing, or client-server computingtechnology may be used, for example.

FIG. 2A is a block diagram 200 illustrating the example electronicdevice 101 for supporting network communication and 5G networkcommunication, according to various embodiments. Referring to FIG. 2A,the electronic device 101 may include a first communication processor212 (e.g., including processing circuitry), a second communicationprocessor (e.g., including processing circuitry) 214, a firstradio-frequency integrated circuit (RFIC) 222, a second RFIC 224, athird RFIC 226, a fourth RFIC 228, a first radio-frequency front end(RFFE) 232, a second RFFE 234, a first antenna module 242, a secondantenna module 244, and an antenna 248. The electronic device 101 mayfurther include a processor 120 and a memory 130. The network 199 mayinclude a first network 292 and a second network 294. According toanother embodiment, the electronic device 101 may further include atleast one of the components illustrated in FIG. 1, and the network 199may further include at least one different network. According to anembodiment, the first communication processor 212, the secondcommunication processor 214, the first RFIC 222, the second RFIC 224,the fourth RFIC 228, the first RFFE 232, and the second RFFE 234 mayform at least a part of a wireless communication module 192. Accordingto another embodiment, the fourth RFIC 228 may be omitted or included asa part of the third RFIC 226.

The first communication processor 212 may include various processingcircuitry and establish a communication channel in a band to be used forwireless communication with the first network 292 and may support legacynetwork communication via the established communication channel.According to various embodiments, the first network may be a legacynetwork including a 2^(nd) generation (2G), 3G, 4G, or long termevolution (LTE) network. The second communication processor 214 mayestablish a communication channel corresponding to a designated band(for example, about 6 GHz to 60 GHz) among bands to be used for wirelesscommunication with the second network 294 and may support 5G networkcommunication via the established communication channel. According tovarious embodiments, the second network 294 may be a 5G network definedby 3GPP. Additionally, according to an embodiment, the firstcommunication processor 212 or the second communication processor 214may establish a communication channel corresponding to anotherdesignated band (for example, about 6 GHz or less) among bands to beused for wireless communication with the second network 294 and maysupport 5G network communication via the established communicationchannel.

The first communication processor 212 may transmit/receive data with thesecond communication processor 214. For example, data that has beenclassified to be transmitted via the second cellular network 294 may bechanged to be transmitted via the first cellular network 292. In thiscase, the first communication processor 212 may receive transmissiondata delivered from the second communication processor 214.

For example, the first communication processor 212 may transmit/receivedata with the second communication processor 214 via an inter-processorinterface 213. The inter-processor interface 213 may be implemented, forexample, as a universal asynchronous receiver/transmitter (UART) (forexample, high speed UART (HS-UART)) or peripheral component interconnectbus express (PCIe)) interface, but the type is not limited.Alternatively, the first communication processor 212 and the secondcommunication processor 214 may exchange control information and packetdata information via a shared memory, for example. The firstcommunication processor 212 may transmit/receive various kinds ofinformation, such as sensing information, information regarding theoutput intensity, and resource block (RB) assignment information, withthe second communication processor 214.

Depending on the manner of implementation, the first communicationprocessor 212 may not be directly connected to the second communicationprocessor 214. In this case, the first communication processor 212 maytransmit/receive data with the second communication processor 214 via aprocessor 120 (for example, application processor). For example, thefirst communication processor 212 and the second communication processor214 may transmit/receive data with the processor 120 (for example,application processor) via an HS-UART interface or PCIe interface, butthe type of interface is not limited. Alternatively, the firstcommunication processor 212 and the second communication processor 214may exchange control information and packet data information with theprocessor 120 (for example, application processor) via a shared memory.

According to an embodiment, the first communication processor 212 andthe second communication processor 214 may be implemented inside asingle chip or a single package. According to various embodiments, thefirst communication processor 212 or the second communication processor214 may be formed inside a single chip or a single package together witha processor 120, an auxiliary processor 123, or a communication module190. For example, as in FIG. 2B, the combined communication processor(e.g., including processing circuitry) 260 may support all functions forcommunicating with the first cellular network and the second cellularnetwork.

The first RFIC 222 may convert, during transmission, a baseband signalproduced by the first communication processor 212 into a RF signal ofabout 700 MHz to about 3 GHz used by the first network 292 (for example,legacy network). During reception, an RF signal may be acquired from thefirst network 292 (for example, legacy network) via an antenna (forexample, first antenna module 242), and may be preprocessed via the anRFFE (for example, first RFFE 232). The first RFIC 222 may convert thepreprocessed RF signal into a baseband signal such that the same can beprocessed by the first communication processor 212.

The second RFIC 224 may convert, during transmission, a baseband signalproduced by the first communication processor 212 or the secondcommunication processor 214 into an RF signal (hereinafter, referred toas SG Sub6 RF signal) in a Sub6 band (for example, about 6 GHz or less)used by the second network 294 (for example, 5G network). Duringreception, a 5GSub6 RF signal may be acquired from the second network294 (for example, SG network) via an antenna (for example, secondantenna module 244), and may be preprocessed via an RFFE (for example,second RFFE 234). The second RFIC 224 may convert the preprocessed5GSub6 RF signal into a baseband signal such that the same can beprocessed by a corresponding communication processor, among the firstcommunication processor 212 and the second communication processor 214.

The third RFIC 226 may convert a baseband signal produced by the secondcommunication processor 214 into a RF signal (hereinafter, referred toas 5G Above6 RF signal) in a 5GAbove6 band (for example, about 6 GHz toabout 60 GHz) to be used in the second network 294 (for example, 5Gnetwork). During reception, a 5G Above RF signal may be acquired fromthe second network 294 (for example, 5G network) via an antenna (forexample, antenna 248) and may be preprocessed via the third RFFE 236.The third RFIC 226 may convert the preprocessed 5G Above 6 RF signalinto a baseband signal such that the same can be processed by the secondcommunication processor 214. According to an embodiment, the third RFFE236 may be formed as a part of the third RFIC 226.

The electronic device 101, according to an embodiment, may include afourth RFIC 228 separately from the third RFIC 226 or as at least a partthereof. In this case, the fourth RFIC 228 may convert a baseband signalproduced by the second communication processor 214 into an RF signal(hereinafter, referred to as IF signal) in an intermediate frequencyband (for example, about 9 GHz to about 11 GHz) and then deliver the IFsignal to the third RFIC 226. The third RFIC 226 may convert the FIsignal into a 5GAbove6 RF signal. During reception, a 5GAbove6 RF signalmay be received from the second network 294 (for example, 5G network)via an antenna (for example, antenna 248) and may be converted into anIF signal via the third RFIC 226. The fourth RFIC 228 may convert the IFsignal into a baseband signal such that the same can be processed by thesecond communication processor 214.

According to an embodiment, the first RFIC 222 and the second RFIC 224may be implemented as at least a part of a single chip or a singlepackage. According to an embodiment, the first RFFE 232 and the secondRFFE 234 may be implemented as at least a part of a single chip or asingle package. According to an embodiment, at least one of the firstantenna module 242 or the second antenna module 244 may be omitted orcoupled to another antenna module so as to process RF signals incorresponding multiple bands.

According to an embodiment, the third RFIC 226 and the antenna 248 maybe disposed on the same substrate so as to form a third antenna module246. For example, the wireless communication module 192 or the processor120 may be disposed on a first substrate (for example, main PCB). Inthis case, the third RFIC 226 may be disposed on a partial area (forexample, lower surface) of a second substrate (for example, sub PCB)which is separate from the first substrate, and the antenna 248 may bedisposed on another partial area (for example, upper surface) thereof,thereby forming a third antenna module 246. By disposing the third RFIC226 and the antenna 248 on the same substrate, the length of thetransmission line therebetween can be reduced. For example, it ispossible to reduce loss (for example, attenuation) of a signal in ahigh-frequency band (for example, about 6 GHz to about 60 GHz) used for5G network communication, due to the transmission line. This enables theelectronic device 101 to improve the quality or rate of communicationwith the second network 294 (for example, 5G network).

According to an embodiment, the antenna 248 may be formed as an antennaarray including multiple antenna elements that can be used forbeamforming. In this case, the third RFIC 226 may include multiple phaseshifters 238 corresponding to the multiple antenna elements, as a partof the third RFFE 236, for example. During transmission, each of themultiple phase shifters 238 may convert the phase of a 5G Above6 RFsignal to be transmitted to the outside (for example, base station of 5Gnetwork) of the electronic device 101 via a corresponding antennaelement. During reception, each of the multiple phase shifters 238 mayconvert the phase of a 5G Above6 RF signal received from the outside viaa corresponding antenna element into the same or substantially samephase. This enables transmission or reception via beamforming betweenthe electronic device 101 and the outside.

The second network 294 (for example, 5G network) may be runindependently (for example, standalone (SA)) of the first network 292(for example, legacy network) or run while being connected thereto (forexample, non-standalone (NSA)). For example, the 5G network may haveonly an access network (for example, 5G radio access network (RAN)) ornext-generation RAN (NG RAN), and may have no core network (for example,next-generation core (NGC)). In this case, the electronic device 101 mayaccess the access network of the 5G network and then access an externalnetwork (for example, Internet) under the control of the core network(for example, evolved packed core (EPC)) of the legacy network. Protocolinformation (for example, LTE protocol information) for communicationwith the legacy network or protocol information (for example, new radio(NR) protocol information) for communication with the 5G network may bestored in the memory 230 and accessed by another component (for example,processor 120, first communication processor 212, or secondcommunication processor 214).

FIG. 3 is a diagram illustrating an example wireless communicationsystems providing networks for legacy communication and/or 5Gcommunication according to various embodiments. Referring to FIG. 3, thenetwork environment 300 a may include at least one of a legacy networkand a 5G network. The legacy network may include, for example, a 4G orLTE base station 340 (for example, eNodeB (eNB)) based on a 3GPPstandard that supports wireless connection with an electronic device101, and an evolved packet core (EPC) configured to manage 4Gcommunication. The 5G network may include, for example, a new radio (NR)base station (for example, gNodeB (gNB)) supporting wireless connectionwith the electronic device 101, and a 5^(th) generation core (5GC)configured to manage 5G communication of the electronic device 101.

According to various embodiments, the electronic device 101 maytransmit/receive a control message and user data via legacycommunication and/or 5G communication. The control message may include,for example, a message related to at least one of security control, bearsetup, authentication, registration, or mobility management of theelectronic device 101. The user data may refer to user data other than acontrol message transmitted/received between the electronic device 101and the core network 330 (for example, EPC).

Referring to FIG. 3, the electronic device 101 according to anembodiment may transmit/receive at least one of a control message oruser data with at least a part (for example, NR base station or 5GC) ofthe 5G network using at least a part (for example, LTE base station orEPC) of the legacy network.

According to various embodiments, the network environment 300 a mayinclude a network environment which provides wireless communication dualconnectivity (DC) to the LTE base station and the NR base station, andwhich transmits/receives a control message with the electronic device101 via a core network 230 of one of EPC or the 5GC.

According to various embodiments, in the DC environment, one of the LTEbase station or the NR base station may operate as a master node (MN)310, and the other thereof may operate a secondary node (SN) 320. The MN310 may be connected to the core network 230 so as to transmit/receive acontrol message. The MN 310 and the SN 320 may be connected via anetwork interface so as to transmit/receive messages related to radioresource (for example, communication channel) management.

According to various embodiments, the MN 310 may be configured with anLTE base station 340, the SN 320 may be configured with an NR basestation, and the core network 330 may be configured with an EPC. Forexample, a control message may be transmitted/received via the LTE basestation and the EPC, and user data may be transmitted/received via atleast one of the LTE base station or the NR base station.

According to various embodiments, the MN 310 may be configured with anNR base station, the SN 320 may be configured with an LTE base station,and the core network 330 may be configured with a 5GC. For example, acontrol message may be transmitted/received via the NR base station andthe 5GC, and user data may be transmitted/received via at least one ofthe LTE base station or the NR base station.

According to various embodiments, the electronic device 101 may beregistered in at least one of the EPC or the 5GC so as totransmit/receive a control message.

According to various embodiments, the EPC or the 5GC may managecommunication of the electronic device 101 via interworking. Forexample, movement information of the electronic device 101 may betransmitted/received via the interface between the EPC and the 5GC.

As described above, the dual connectivity via the LTE base station andthe NR base station may also be referred to as E-UTRA new radio dualconnectivity (EN-DC). Meanwhile, the MR DC may be variously applicable,in addition to the EN-DC. For example, the first network and the secondnetwork based on the MR-DC may all pertain to LTE communication, and thesecond network may correspond to a small cell having a specificfrequency. For example, the first network may be connected to the 5Gcore network, but the radio interval thereof may use LTE communication,and the second network may pertain to 5G communication. For example, thefirst network and the second network based on the MR-DC may all pertainto 5G, the first network may correspond to a frequency band (forexample, below 6) less than 6 GHz, and the second network may correspondto a frequency band (for example, over 6) equal to/higher than 6 GHz. Aperson skilled in the art could easily understand that variousembodiments are applicable to any network structure to which dualconnectivity is applicable, besides the above-mentioned examples.

FIG. 4 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting from(e.g., based on) radiation of a communication signal corresponding tofirst network communication and a second cumulative SAR value resultingfrom radiation of a communication signal corresponding to second networkcommunication, in operation 401. The electronic device 101 may storeinformation regarding power input to an antenna for radiation of acommunication signal corresponding to first network communication, whichhas been transmitted in the past, and information regarding power inputto the antenna for radiation of a communication corresponding to asecond network communication signal. The information regarding powerinput to the antenna may be expressed in the unit of dB, dBM, or Watt(W), for example, but the unit is not limited. According to variousembodiments, the electronic device 101 may store information regardingpower radiated from the antenna, and any magnitude of power associatedwith the SAR may be used with no limitation. The magnitude of powerinput to the antenna and/or the magnitude of power radiated from theantenna may be referred to as the transmission intensity of thecommunication signal. The electronic device 101 may store pieces ofinformation regarding the transmission intensity corresponding torespective network communication signals during a designated timeperiod. The electronic device 101 may identify a first cumulative SARvalue corresponding to first network communication, based on informationregarding the transmission intensity of a communication signalcorresponding to the first network communication, and may identify asecond cumulative SAR value corresponding to second networkcommunication, based on information regarding the transmission intensityof a communication signal corresponding to the second networkcommunication. The electronic device 101 may store information regardingassociation between the transmission intensity and the SAR value, andmay identify the cumulative SAR value based thereon. For example, theelectronic device 101 may identify SAR values in multiple sub timeintervals of a designated time period, respectively, and may summate theSAR values in the multiple sub time intervals, respectively, therebyidentifying the cumulative SAR value. In another embodiment, theelectronic device 101 may store only the cumulative SAR value at a pasttimepoint of a designated period and may update the same, therebymanaging the cumulative SAR value. In this case, the electronic device101 may not store information regarding the transmission intensity atthe past timepoint.

According to various embodiments, the electronic device 101 maydetermine the transmission intensity of a communication signal, which isscheduled to be transmitted at the current timepoint, based on the firstcumulative SAR value and the second cumulative SAR value, in operation403. The electronic device 101 may transmit a communication signal withthe determined transmission intensity of the communication signal, inoperation 405. For example, the electronic device 101 may predict ancumulative SAR value during a designated time period (for example, fiftyseconds) at least one future timepoint, based on an cumulative SARvalue. For example, the electronic device 101 may predict an cumulativeSAR value for a designated time period (50 seconds) at a first futuretimepoint after 0.5 second, and may predict a (minimum) cumulative SARvalue for 50 seconds at each of a second future timepoint and a 50^(th)future timepoint after 1.0 second/49.5 seconds. In order to predict a(minimum) cumulative SAR value during a designated time period at afuture timepoint, the electronic device 101 may use at least a part of aSAR value cumulative at a past timepoint. According to variousembodiments, if a predicted (minimum) cumulative SAR value at least onefuture timepoint exceeds a threshold cumulative value, the electronicdevice 101 may determine that the transmission intensity of thecommunication signal to be transmitted at the current timepoint is abacked-off transmission intensity. If the predicted (minimum) cumulativeSAR value at least one future timepoint is equal to/less than thethreshold cumulative value, the electronic device 101 may determine thatthe transmission intensity of the communication signal to be transmittedat the current timepoint is a normal transmission intensity. In variousembodiments, the expression “transmitting a communication signal with adetermined transmission intensity” may be understood referring, forexample, to the electronic device 101 configuring a parameter (forexample, power amp bias or RF gain) based on the determine transmissionintensity. For example, at least one of the first communicationprocessor 212, the second communication processor 214, or the combinedcommunication processor 260 may configure (or adjust) the parameter (orsetting) of at least one of the first RFIC 222, the second RFIC 224, thethird RFIC 226, the fourth RFIC 228, the first RFFE 232, or the secondRFFE 234. A person skilled in the art would understand that theparameter is not limited, as long as the same is for the purpose ofadjusting the magnitude of power (or current) applied to the antenna. Asdescribed above, the cumulative SAR value at a specific future timepointmay be maintained to be equal to/less than a threshold cumulative value,and the average SAR value may accordingly be maintained to be equalto/less than a threshold average value.

In some cases, the electronic device 101 according to variousembodiments may determine, even when a SAR event has occurred, atransmission intensity corresponding to the SAR event, instead of anormal transmission intensity, even if the predicted cumulative SARvalue at a future timepoint is equal to/less than the thresholdcumulative value. The SAR event may refer to an event that by which theSAR that influences the user may be changed, such as the user's approachor contact, for example, and a different transmission intensity may beconfigured for each SAR event. As described above, if the cumulative SARvalue predicted at a future timepoint is equal to/less than thethreshold cumulative value, the electronic device 101 may select a smallvalue from a normal transmission intensity and a transmission intensitycorresponding to a SAR event when the SAR event occurs. Moreover, if thecumulative SAR value predicted at a future timepoint exceeds thethreshold cumulative value, the electronic device 101 may select a smallvalue from a normal transmission intensity, a transmission intensitycorresponding to a SAR event when the SAR event occurs, and backoffintensities following cumulative values, and this will be described ingreater detail below.

FIG. 5 is a diagram including graphs illustrating an example backoffprocess based on an cumulative SAR value according to variousembodiments. According to various embodiments, during a first timeinterval (t<t1), the electronic device 101 (for example, at least one ofprocessor 120, first communication processor 212, second communicationprocessor 214, or combined communication processor 260) may configurethe transmission intensity 501 of first network communication (forexample, LTE communication) to be A1, and may configure the transmissionintensity 502 of second network communication (for example, NRcommunication) to be A2. The A1 and A2 may be, for example, transmissionintensities that are not backed off, or if a SAR event has occurred, maybe transmission intensities that are backed off so as to correspond tothe occurred SAR event. During the first time interval (t<t1), thecumulative SAR 511 may increase to B1, and the average SAR 521 may alsoincrease. If the current transmission intensities 501 and 502 aremaintained at the timepoint of t1, for example, the electronic device101 may identify that the average SAR 521 will exceed a thresholdaverage value C1 at a future timepoint. Methods for determining whetherthe predicted average SAR exceeds the threshold average value will bedescribed later. Alternatively, the electronic device 101 may beconfigured to determine whether a predicted cumulative SAR during adesignated period at a future timepoint exceeds a threshold cumulativevalue.

According to various embodiments, if it is identified that the averageSAR 521 exceeds the threshold average value, the electronic device 101may back off the transmission intensity 501 of the first network to A3during the second time interval (t≥t1), and may back off thetransmission intensity 502 of the second network to A4. It may beidentified that, as a result of the backoff, the rate of increase of thecumulative SAR 511 in the second time interval (t≥t1) has decreasedcompared with the rate of increase of the cumulative SAR 511 in thefirst time interval (t≤t1). It may also be identified that the averageSAR 521 decreases during the second time interval (t≥t1) as a result ofthe backoff. Although not illustrated, even if the electronic device 101increases the backed-off intensities again, the average SAR at a futuretimepoint may be maintained to be equal to/less than a threshold averagevalue. In this case, the electronic device 101 may increase thetransmission intensities A3 and A4 back to A1 and A2. As describedabove, the average SAR 521 may be maintained to be equal to/less than athreshold average value C.

Although FIG. 5 illustrates a configuration in which the transmissionintensity 501 of the first network communication and the transmissionintensity 502 of the second network communication are substantiallysimultaneously backed off, this is simply an example, and the electronicdevice 101 according to various embodiments may preferentially back offthe transmission intensity of specific network communication, and thiswill now be described in greater detail below with reference to FIG. 6Aand FIG. 6B.

FIG. 6A is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. Descriptions ofoperations in FIG. 6A, which have already been described with referenceto FIG. 4, may be made briefly.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting fromradiation of a first communication signal corresponding to first networkcommunication and a second cumulative SAR value resulting from radiationof a communication signal corresponding to second network communication,in operation 601. The electronic device 101 may identify whether abackoff of the transmission intensity of a communication signal isrequired, based on the first cumulative SAR value and the secondcumulative SAR value, in operation 603. For example, the electronicdevice 101 may identify whether a backoff is requested, according towhether it is predicted that the average SAR will exceed the thresholdaverage value at least one future timepoint. The electronic device 101may identify whether a backoff is requested, according to whether it ispredicted that the cumulative SAR will exceed the threshold cumulativevalue during a designated time period at least one future timepoint.

According to various embodiments, if it is identified that a backoff isrequested (Yes in operation 603), the electronic device 101 may adjustone of the transmission intensity of the first communication signal orthe transmission intensity of the second communication signal inoperation 605. In an embodiment, the electronic device 101 may perform abackoff first with regard to one of the two types of networkcommunication according to a designated priority. For example, theelectronic device 101 may be configured to first back off NRcommunication in an EN-DC environment for LTE communication and NRcommunication. Configuration of a priority for each type of networkcommunication is simply an example, the priority is not limited, andvarious priorities will be described later. If it is identified that nobackoff is requested (No in operation 603), the electronic device 101may transmit a first communication signal and a second communicationsignal with the configured transmission intensity in operation 607. Forexample, the electronic device 101 may transmit communication signalswith a normal communication signal intensity. Alternatively, theelectronic device 101 may transmit communication signals with atransmission intensity which is not backed off by an average SAR, butwhich is backed off by temporary occurrence of a SAR event.

FIG. 6B is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. The operations inFIG. 6B may be performed by the electronic device 101, for example, whenit is determined to adjust the second communication signal, from amongthe first communication signal and the second communication signal, inFIG. 6A.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may adjust (for example, back off) the transmissionintensity of the second communication signal in operation 611. Forexample, the electronic device 101 may be configured to back off thetransmission intensity of the second communication signalpreferentially, compared with the transmission intensity of the firstcommunication signal. If it is identified in operation 603 in FIG. 6Athat there is a request for a backoff of the intensity of acommunication signal, the electronic device 101 may preferentially backoff the transmission intensity of the second communication signalaccording to the priority. In operation 613, the electronic device 101may determine whether the transmission intensity of the firstcommunication signal is adjusted. While transmitting the secondcommunication signal with a backed-off transmission intensity, theelectronic device 101 may transmit the first communication signal with anormal transmission intensity that is not backed off. The electronicdevice 101 may determine whether to back off the transmission intensityof the first communication signal additionally. For example, whentransmitting communication signals with the above-mentioned transmissionintensity, the electronic device 101 may identify whether there is arequest for a backoff regarding the first communication signal,according to whether it is predicted that the average SAR will exceedthe threshold average value at least one future time. The electronicdevice 101 may identify whether there is a request for a backoffregarding the first communication signal, according to whether it ispredicted that the cumulative SAR during a designated time period atleast one future timepoint will exceed the threshold cumulative value.If it is identified that there is a request for adjustment of thetransmission intensity of the first communication signal (Yes inoperation 613), the electronic device 101 may adjust (for example, backoff) the transmission intensity of the first communication signal inoperation 615. If it is identified that there is no request foradjustment of the transmission intensity of the first communicationsignal (No in operation 613), the electronic device 101 may transmit afirst communication signal with a configured transmission intensity (forexample, normal transmission intensity that is not backed off) inoperation 617. Although not illustrated, the electronic device 101 mayidentify whether the backoff of the second communication signal isreleased. If it is identified that the backoff of the secondcommunication signal will be released, the electronic device 101 maydetermine that the transmission intensity of the second communicationsignal is a normal transmission intensity that is not backed off.

According to various embodiments, the electronic device 101 maydetermine whether to conduct a backoff in view of not only the SAR, butalso the power density (PD). For example, the electronic device 101 maydetermine to back off the transmission intensity if it is predicted thatthe sum of the ratio of the cumulative SAR against the threshold SARvalue and the ratio of the cumulative PD against the threshold PD valuewill exceed 1. The configuration regarding the threshold PD value or thecumulative PD may be substantially identical to the correspondingconfiguration of the SAR.

FIG. 7 is a diagram including graphs illustrating an example backoffprocess based on an cumulative SAR value according to variousembodiments.

According to various embodiments, during the first time interval (t<t1),the electronic device 101 (for example, at least one of processor 120,first communication processor 212, second communication processor 214,or combined communication processor 260) may configure the transmissionintensity 701 of first network communication (for example, LTEcommunication) to be A1 and may configure the transmission intensity 702of second network communication (for example, NR communication) to beA2. The relative size between the values of A1 and A2 in the diagram isan example, and A1 and A2 may have the same absolute value. It may beidentified that the cumulative SAR 711 increases to B2 with a first rateof increase during the first time interval (t<t1). The electronic device101 may identify that a backoff is requested at the first timepoint t1.The electronic device 101 may preferentially back off the transmissionintensity 702 of the second network communication (for example, NRcommunication) to A4, based on identifying that a backoff is requested.It may be identified that the cumulative SAR 711 accordingly increasesto B3 with a second rate of increase during the second time interval(t1≤t≤t2). The electronic device 101 may again identify that a backoffis requested at the second timepoint t2. The electronic device 101 mayback off the transmission intensity 701 of the first networkcommunication (for example, LTE communication) to A3 at the secondtimepoint t2. It may be identified that the cumulative SAR 711accordingly increases with a third rate of increase during the thirdtime interval (t2≤t). As described above, the transmission intensity ofthe second network communication (for example, NR communication) isfirst backed off, thereby making it possible to operate a relativelylarge intensity of the communication signal for communication with themaster node, which is in charge of both the control plane and the userplane.

According to various embodiments, the electronic device 101 may back offthe transmission intensity 702 of the second network communicationduring the second time interval (t1≤t≤t2), for example, and mayconfigure the transmission intensity 701 of the first networkcommunication to have a larger value than A1. In this case, thecumulative SAR 711 may increase at a rate of increase different from thesecond rate of increase in FIG. 7, and the cumulative SAR 711 mayincrease, for example, at a first rate of increase or at a rate ofincrease smaller than the first rate of increase. If the first rate ofincrease is maintained, the additional LTE communication backofftimepoint may be advanced.

FIG. 8A is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. Descriptions ofoperations in FIG. 8A, which have already been described, may be madebriefly.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting fromradiation of a first communication signal corresponding to first networkcommunication and a second cumulative SAR value resulting from radiationof a communication signal corresponding to second network communication,in operation 801. The electronic device 101 may identify in operation803 whether it is predicted that the cumulative SAR value during adesignated time will exceed the threshold cumulative value. For example,the electronic device 101 may identify whether it is predicted that thecumulative SAR value during a designated time will exceed the thresholdcumulative value, based on a SAR at least one past timepoint. There isno restriction on the manner in which the electronic device 101identifies whether the cumulative SAR value exceeds the thresholdcumulative value. For example, the electronic device 101 may identifywhether the threshold is exceeded using a preconfigured mathematicalformula, or with reference to individual calculations regarding multiplefuture timepoints. If it is identified that the cumulative SAR valueduring a designated time exceeds the threshold cumulative value (Yes inoperation 803), the electronic device 101 may back off one of thetransmission intensity of the first communication signal or thetransmission intensity of the second communication signal in operation805. If it is identified that the cumulative SAR value during thedesignated time does not exceed the threshold cumulative value (No inoperation 803), the electronic device 101 may transmit the firstcommunication signal and the second communication signal with aconfigured transmission intensity in operation 807.

FIG. 8B is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. The embodiment inFIG. 8B will be described with reference to FIG. 9A, 9B, 9C, 9D and FIG.9E. FIG. 9A is a graph illustrating example time-specific transmissionintensities according to various embodiments, FIG. 9B is a graphillustrating example time-specific transmission intensities according tovarious embodiments, and FIG. 9C is a graph illustrating exampletime-specific transmission intensities according to various embodiments.FIG. 9D is a diagram including a graph and a table illustrating exampletime-specific transmission intensities according to various embodiments,and FIG. 9E is a diagram including a graph and a table illustratingexample time-specific transmission intensities according to variousembodiments. Descriptions of operations in FIG. 8B, which have alreadybeen described, may be made briefly.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may retrieve multiple tables regarding transmissionintensities corresponding to multiple timepoints in operation 811.Tables will be described first with reference to FIG. 9A, 9B and FIG.9C. FIG. 9A illustrates a graph including transmission intensitiesregarding multiple timepoints 901 to 949. An cumulative SAR during adesignated time period, for example, a time period including 50timepoints, may need to maintain a value equal to/less than a thresholdcumulative value. The electronic device 101 may determine thetransmission intensity of a communication signal to be transmitted atthe current timepoint 949 such that the sum of SARs at the currenttimepoint 949, at specific past timepoints 909 to 948, and at nineadditional future timepoints (not illustrated), for example, maintain avalue equal to/less than a threshold cumulative value. Moreover, theelectronic device 101 may identify transmission intensities 952, thetimepoints of which are shifted by 1 compared with the transmissionintensities 951 at the current timepoint 949 and at specific pasttimepoints 909 to 948, as in FIG. 9B. The description that thetimepoints are shifted by 1 may refer, for example, to data at thetimepoint corresponding to the most distant past (for example, timepoint909 in FIG. 9A) not being reflected. The number of transmissionintensities 952 at the current timepoint 949 and at specific pasttimepoints 909 to 948 is 40, which may be smaller by one than the number(41) of transmission intensities 951 in FIG. 9A. The electronic device101 may determine the transmission intensity at the current timepoint949 such that the sum of SARs resulting from the transmissionintensities 952 and SARs predicted at ten additional future timepointsmaintain a value equal to/less than a threshold cumulative value. As inFIG. 9C, the electronic device 101 may identify transmission intensities953, the timepoints of which are shifted by 25 compared with thetransmission intensities 951. The number of transmission intensities 953at the current timepoint 949 and at specific past timepoints 934 to 948is 16, which may be smaller by 25 than the number (41) of transmissionintensities 951 in FIG. 9A. The electronic device 101 may determine thetransmission intensity at the current timepoint 949 such that the sum ofSARs resulting from the transmission intensities 952 and SARs predictedat 34 additional future timepoints maintain a value equal to/less than athreshold cumulative value. Although not illustrated, the electronicdevice 101 may manage multiple graphs, each of which is shifted by onetimepoint. Hereinafter, a configuration for identifying a predicted SARvalue will be described in greater detail below with reference to FIG.9D and FIG. 9E.

Referring to FIG. 9D, the electronic device 101 may identify a k^(th)SAR table 960. The k^(th) SAR table 960 may include an cumulative SARvalue 961 (D1) at least one past timepoint, the maximum SAR value 962(D2) at the current timepoint, and a predicted SAR value 963 (D3) atleast one future timepoint. Referring to the graph, the cumulative SARvalue corresponding to at least one past timepoint 971 may be D1. Thenumber of at least one past timepoint may be, in the case of the firsttable, smaller by one than the number of total timepoints (for example,100) corresponding to the entire time period (for example, 50 seconds).The entire number of timepoints (for example, 100), N, may be obtainedby dividing the entire time period by the sampling interval (or shiftinterval). Accordingly, in the case of the k^(th) table, the number ofat least one past timepoint may be smaller than the entire number oftimepoints by k. The electronic device 101 may identify an cumulativeSAR value (D1) at (N-k) past timepoints 971. The electronic device 101may use the maximum SAR value (S1) for the current timepoint 972. Themaximum SAR value (S1) may be a SAR value corresponding to the maximumtransmission intensity (maximum instantaneous power) designated by theelectronic device 101. In another embodiment, the SAR value immediatelybefore the current timepoint 972 may be used for the current timepoint972. In another embodiment, the average SAR value of past timepoints 971of the current timepoint 972 may be used for the current timepoint 972.With regard to at least one future timepoint 973, the electronic device101 may calculate the sum of SAR values (S2) regarding backed-offtransmission intensities. The electronic device 101 may identify D3 asthe sum of SARs regarding at least one future timepoint 973. In the caseof the k^(th) table, the number of at least one future timepoint may bek−1. Accordingly, in the case of the k^(th) table, the electronic device101 may identify whether the total sum of SARs (D1+D2+D3) regarding Ntimepoints including (N-k) past timepoints, one current timepoint, and(k−1) future timepoints exceeds a threshold cumulative SAR value (Th).If it is identified that the threshold is exceeded, the electronicdevice 101 may back off the transmission intensity at the currenttimepoint. Referring to FIG. 9E, the electronic device 101 may identifythe (k+1)^(th) table 980 as well. The electronic device 101 mayidentify, in the case of (k+1)^(th) table 980, the cumulative SAR value981 (D4) at least one past timepoint 991, the maximum SAR value 982 (D2)at the current timepoint 992, and the predicted SAR value 983 (D5) atleast one future timepoint 993. The electronic device 101 may identifywhether the cumulative SAR value of D4+D2+D5 exceeds the thresholdcumulative value (Th). In the case of the (k+1)^(th) table, the numberof at least one past timepoint 991 may be smaller by one than the numberof at least one past time point 971 in the case of the k^(th) table. Inthe case of the (k+1)th table, the number of at least one futuretimepoint 993 may be larger by one (994) than the number of at least onefuture time point 973 in the case of the k^(h) table.

According to various embodiments, in operation 813, the electronicdevice 101 may identify, with regard to multiple tables corresponding toat least one future timepoint, a past cumulative SAR value, a predictedSAR value at the current timepoint, and a predicted SAR value at afuture timepoint. The electronic device 101 may identify an cumulativeSAR value with regard to the first table and a total of (N−1tables thatare shifted from the first table by i timepoints (i is equal to/largerthan 1 and less than N−2). In operation 815, the electronic device 101may identify whether there exists a table having the sum of thecumulative SAR value and the predicted SAR value exceeding a threshold.If there is a table having a sum exceeding the threshold (Yes inoperation 815), the electronic device 101 may back off one of thetransmission intensity of the first communication signal or thetransmission intensity of the second communication signal in operation817. If there is no table having a sum exceeding the threshold (No inoperation 815), the electronic device 101 may transmit the firstcommunication signal and the second communication signal with adesignated (e.g. configured) transmission intensity in operation 819.

Table 1 below gives examples of parameters and procedures fordetermining whether to conduct a table-based backoff according tovarious embodiments:

TABLE 1 Parameter i. Measurement Time (T): 50 sec. [description: timefor averaging SARs] ii. Measurement Period (P): 0.5 sec. [description:period for calculating SARs] iii. Number of calculator tables: 99[description: having (T/P-1) calculator tables] iv. SAR LIMIT: 80 mW/g[description: maximum SAR value not to be exceeded during T sec.] v. LTEMax power: 23 dBm [description: maximum value of normal transmissionintensity of LTE] (changeable depending on SAR event) vi. Amount of useof LTE Max Power SAR: 1 mW/g*sec [description: amount of use of SAR whenmaximum value of normal transmission intensity of LTE is applied](changeable depending on SAR event) vii. LTE SAR backoff power: 22.5 dBM[description: maximum value of backed off transmission intensity of LTE](changeable depending on SAR event) viii. Amount of use of LTE SARbackoff power SAR: 0.7 mW/g*sec [description: amount of use of SAR whenmaximum value of backed- off transmission intensity of LTE is applied](changeable depending on SAR event) ix. NR Max power: 23 dBm[description: maximum value of normal transmission intensity of NR](changeable depending on SAR event) x. Amount of use of NR Max powerSAR: 1 mW/g*sec [description: amount of use of SAR when maximum value ofnormal transmission intensity of NR is applied] (changeable depending onSAR event) xi. NR SAR backoff power: 20 dBm [description: maximum valueof backed-off transmission intensity of NR] (changeable depending on SARevent) xii. Amount of use of NR SAR backoff power SAR: 0.1 mW/g*sec[description: amount of use of SAR when maximum value of backed- offtransmission intensity of NR is applied] (changeable depending on SARevent) xiii. Max SAR => maximum SAR value during 0.5 sec. = 1 mW/g (LTEmax + NR max) * time) [description: amount of use of SAR occurring perunit time when transmission intensities of LTE/NR are both configured asmaximum values] xiv. Max Backoff SAR => maximum SAR value when backingoff during 1 sec. = 0.4 mW/g (LTE backoff max + NR backoff max) * time)[description; amount of use of SAR occurring per unit time when backingoff both transmission intensities of LTE/NR] xv. Current SAR VALUE =amount of SAR cumulative to the present, held by each tableDetermination Current SAR VALUE + MAX SAR + (MAX BACKOFF SAR * Criterion(remaining time − P)/P) > SAR LIMIT

As illustrated, for example, in Table 1, the electronic device 101 mayidentify whether the determination criterion is satisfied with regard toeach of 99 calculator tables, for example. The “Current SAR VALUE” inthe determination criterion may be an cumulative SAR value at pasttimepoints 971 in FIG. 9D, for example. The “MAX SAR” in thedetermination criterion may be the maximum SAR value at the currenttimepoint 972 in FIG. 9D, for example. The “(remaining time −P)/P” inthe determination criterion may be the number of at least one futuretimepoint 973 in FIG. 9D, for example, and a value obtained bymultiplying the corresponding value with “SAR(MAX BACKOFF SAR)”, whichcorresponds to a backoff, may be the sum of predicted SARs at futuretimepoints 973. If there is a table satisfying the determinationcriterion, among the tables, the electronic device 101 may determinethat the transmission intensify of a communication signal scheduled tobe transmitted at the current timepoint is a backed-off value (forexample, LTE SAR backoff power: 22.5 dBM or NR SAR backoff power: 20dBM). Although it has been assumed in the description with reference toTable 1 that LTE communication and NR communication are simultaneouslybacked off, this is simply an example, and one type of communication maybe backed off first according to the priority, as described above, andthis will be described in greater detail below. The threshold cumulativevalue (SAR LIMIT) in Table 1 may be configured differently for eachtable, and may be configured identically in another example. FIG. 10 isa flowchart illustrating example operations of updating a table anddetermining whether a determination criterion in the table is satisfied,according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify whether a timer expires in operation 1001.For example, the timer may be configured for one unit time (for example,0.5 second in Table 1). If it is identified that the timer has expired(Yes in operation 1001), the electronic device 101 may shift data withintables by the timer time and set the initial table to zero in operation1003. For example, the electronic device 101 may shift each of 99 tablesin Table 1 by the timer time (for example, 0.5 second), thereby updating98 tables, and may set one (initial) table to zero. For example, theshift may set a table to zero, all times within the table being made upof past timepoints.

According to various embodiments, the electronic device 101 may identifycumulative SARs (for example, Current SAR VALUE in Table 1) ofrespective tables in operation 1005. In operation 1007, the electronicdevice 101 may sum a predicted SAR value at the current timepoint (forexample, MAX SAR in Table 1) and a predicted SAR value at a futuretimepoint (for example, MAX Backoff SAR in Table 1) with regard tocumulative SARs of respective tables. In operation 1009, the electronicdevice 101 may identify whether there is a table, the summation resultof which exceeds a threshold. If there is no table having a summationresult exceeding the threshold (No in operation 1009), the electronicdevice 101 may determine in operation 1011 that the maximum size is anormal maximum size. For example, the electronic device 101 is notlimited by the cumulative SAR value, and may use power necessary totransmit data with reference to predesignated maximum instantaneouspower of the electronic device 101. If it is identified that there is atable having a summation result exceeding the threshold (Yes inoperation 1009), the electronic device 101 may determine in operation1013 that the maximum size is a backoff maximum size. Theabove-described operations may enable the electronic device 101 toidentify whether to perform a backoff for each designated timer time.Table 2 below gives an example of tables according to variousembodiments.

TABLE 2 MAX Maximum use of Amount of Table MAX BACKOFF SAR when backingSAR cumulative SAR (sec) SAR SAR off after P seconds LIMIT before MAX0.5 1 0.4 40.2 80 39.8 1.0 1 0.4 39.8 80 40.2 1.5 1 0.4 39.4 80 40.6 2.01 0.4 39.0 80 41.0 2.5 1 0.4 38.6 80 41.4 3.0 1 0.4 38.2 80 41.8 . . . 10.4 . . . 80 . . . 47.0 1 0.4 3.0 80 77.0 47.5 1 0.4 2.6 80 77.4 48.0 10.4 2.2 80 77.8 48.5 1 0.4 1.8 80 78.2 49.0 1 0.4 1.4 80 78.6 49.5 1 0.41.0 80 79.0

The electronic device 101 may identically configure MAX SAR (forexample, 1), MAX BACK OFF (for example, 0.4), and SAR LIMIT (forexample, 80) with regard to 99 tables, as in Table 2, for example.Meanwhile, the maximum use of SAR when backing off after P seconds isbased on a value obtained by multiplying the remaining time by MAXBACKOFF SAR (or a value obtained by taking an offset), for example, andmay be a substantially fixed value. The maximum use of SAR when backingoff after P seconds is illustrated in FIG. 11. For example, the firsttable 1101 in FIG. 11 may correspond to 0.5 second in Table 2, and themaximum use of SAR when backing off after P seconds may be 40.2. It isclear from FIG. 11 that the maximum use of SAR when backing off after Pseconds decreases in the case of tables 1101, 1102, 1103, 1104, 1105,1106, 1107, 1108, 1109, 1110, 1111 and 1112. Since the maximum use ofSAR when backing off after P seconds is a substantially fixed value, andsince MAX SAR and MAX BACKOFF SAR are fixed values, the electronicdevice 101 may determine whether to conduct a backoff by comparing theamount of cumulative SAR before MAX with the amount of cumulative SARfor each table. For example, if the previous amount of cumulative SAR ofthe table corresponding to 3.0 seconds exceeds 41.8, the electronicdevice 101 may determine to conduct a backoff.

FIG. 12 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. Descriptions ofoperations in FIG. 12, which have already been described, may be madebriefly. The embodiment in FIG. 12 will be described with reference toFIG. 13. FIG. 13 is a graph illustrating example transmissionintensities according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting fromradiation of a first communication signal corresponding to first networkcommunication and a second cumulative SAR value resulting from radiationof a communication signal corresponding to second network communication,in operation 1201. The electronic device 101 may identify whether abackoff of the transmission intensity of a communication signal isrequired, based on the first cumulative SAR value and the secondcumulative SAR value, in operation 1203. If it is identified that nobackoff is required (No in operation 1203), the electronic device 101may determine that the transmission intensity of the communicationsignal of the first network communication (for example, LTEcommunication) is a first value in operation 1205. The first value, asused herein, refers to a value that is not backed off, for example, andmay correspond to a normally configured maximum transmission intensityor a transmission intensity corresponding to a SAR event. For example,if no backoff is requested, the electronic device 101 may transmit thecommunication signal of the first network communication with a firsttransmission intensity 1301 (C1) in FIG. 13. According to variousembodiments, the electronic device 101 may determine that thetransmission intensity of the first network communication (for example,LTE communication) is a value that is not backed off.

According to various embodiments, if it is identified that a backoff isrequested (Yes in operation 1203), the electronic device 101 mayidentify whether communication corresponding to a designated applicationis being performed in operation 1207. For example, the electronic device101 may identify whether communication (for example, VoLTE service)related to a call application is being performed. If it is identifiedthat communication corresponding to a designated application is beingperformed (Yes in operation 1207), the electronic device 101 maydetermine that the transmission intensity of the communication signal ofthe first network communication (for example, LTE communication) is asecond value, in operation 1209. The second value may be a backofftransmission intensity when a designated application is performed, forexample. For example, the electronic device 101 may transmit thecommunication signal of the first network communication (for example,LTE communication) with a second transmission intensity 1302 (C2) inFIG. 13. The electronic device 101 may transmit a communication signalwith the first transmission intensity 1301 (C1) and, upon identifyingthat a backoff is requested at the first timepoint (t1), may transmitthe communication signal with the second transmission intensity 1302(C2). If it is identified that no communication corresponding to thedesignated application is being performed (No in operation 1207), theelectronic device 101 may determine that the transmission intensity ofthe first communication signal is a third value in operation 1211. Thethird value may be a backoff transmission intensity when no designatedapplication is performed, for example. For example, the electronicdevice 101 may transmit the communication signal of the first networkcommunication (for example, LTE communication) with a third transmissionintensity 1302 (C3) in FIG. 13. The electronic device 101 may transmit acommunication signal with the first transmission intensity 1301 (C1)and, upon identifying that a backoff is requested at the first timepoint(t1), may transmit the communication signal with the third transmissionintensity 1303 (C3). The third transmission intensity 1303 (C3) may besmaller than the second transmission intensity 1302 (C2). As describedabove, if it is identified that VoLTE is being performed, the electronicdevice 101 according to an embodiment may configure a relatively largevalue (for example, second transmission intensity C2) as the backed-offtransmission intensity. In the case of VoLTE, the user's telephone callmay be hung up during a call drop, and stable communication connectionneeds to be maintained. Accordingly, the electronic device 101 mayconfigure a relatively high transmission intensity of LTE communicationwhile performing VoLTE, even if a backoff is requested. In variousembodiments, the electronic device 101 may maintain the transmissionintensity of LTE as it is, or may further increase the same, and thetransmission intensity of NR communication may be backed off in thiscase. It is also possible to back off the transmission intensity of NRcommunication, and this will be described later. Meanwhile, it has beenassumed in the description with reference to FIG. 12 that the backed-offtransmission intensity of the first network communication (for example,LTE communication) when VoLTE is performed is configured to be largerthan the backed-off transmission intensity of the first networkcommunication when VoLTE is not performed, but this is simply anexample. For example, even when a specific application requiringstability (for example, payment application) is executed, the backed-offtransmission intensity may be configured to be higher than when theapplication is not executed.

FIG. 14 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting fromradiation of a first communication signal corresponding to first networkcommunication and a second cumulative SAR value resulting from radiationof a communication signal corresponding to second network communication,in operation 1401. In operation 1403, the electronic device 101 mayidentify whether communication (for example, VoLTE) corresponding to adesignated application is being performed.

According to various embodiments, if it is identified that communicationcorresponding to the designated application is being performed (Yes inoperation 1403), the electronic device 101 may identify whether a firstbackoff condition is satisfied in operation 1405. If it is identifiedthat no communication corresponding to the designated application isbeing performed (No in operation 1403), the electronic device 101 mayidentify whether a second backoff condition is satisfied in operation1411. For example, if the designated application uses first networkcommunication, the first backoff condition and the second backoffcondition may be backoff conditions regarding second networkcommunication. The second backoff condition may further include a SARmargin assigned to the communication (for example, LTE communication)corresponding to the designated application. For example, the SAR marginregarding the LTE communication under the first backoff condition may behigher than the SAR margin regarding LTE communication while performingVoLTE under the second backoff condition. As in the above-describedexample, a relatively larger SAR may be assigned to LTE communicationwhen VoLTE is performed. Since LTE communication requires a relativelarger SAR, the SAR available to NR communication may become smaller, ina time average aspect. Accordingly, the threshold cumulative value (SARlimit) for backing off second communication under the first backoffcondition may be smaller than the threshold cumulative value (SAR limit)for backing off second network communication under the second backoffcondition.

It is identified that communication corresponding to the designatedapplication is being performed, and the first backoff condition isaccordingly applied. The electronic device 101 may identify whether thefirst backoff condition is satisfied in operation 1405. If the firstbackoff condition is not satisfied (No in operation 1405), theelectronic device 101 may determine that the transmission intensity ofthe communication signal of the second network communication is a firstvalue in operation 1407. The first value may have no backoff appliedthereto. If the first backoff condition is satisfied (Yes in operation1405), the electronic device 101 may determine that the transmissionintensity of the communication signal of the second networkcommunication is a second value in operation 1409. It is identified thatno communication corresponding to the designated application is beingperformed, and the second backoff condition is accordingly applied. Theelectronic device 101 may identify whether the second backoff conditionis satisfied in operation 1411. If the second backoff condition is notsatisfied (No in operation 1411), the electronic device 101 maydetermine that the transmission intensity of the communication signal ofsecond network communication is a third value in operation 1413. Thethird value may have no backoff applied thereto, and may be configuredto be equal to, larger than, or smaller than the first value, forexample. If the second backoff condition is satisfied (Yes in operation1411), the electronic device 101 may determine that the transmissionintensity of the communication signal of the second networkcommunication is a fourth value in operation 1415. The backoff value(fourth value) when the designated application is performed may besmaller than the backoff value (third value) when the designatedapplication is not performed. However, the relative size of the thirdand fourth values is not limited. For example, the backoff value of NRcommunication when VoLTE communication is performed may be configured tobe smaller than the backoff value of NR communication when VoLTEcommunication is not performed. This may secure a relatively largetransmission intensity of LTE communication for VoLTE, thereby improvingthe stability of VoLTE.

FIG. 15 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. The embodiment inFIG. 15 will be described with reference to FIG. 16 and FIG. 17. FIG. 16is a graph illustrating example transmission intensity and an cumulativeSAR according to various embodiments. FIG. 17 is a diagram illustratingan example SAR margin of LTE according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting fromradiation of a first communication signal corresponding to first networkcommunication and a second cumulative SAR value resulting from radiationof a communication signal corresponding to second network communication,in operation 1501. For example, as in FIG. 16, the electronic device 101may configure the transmission intensity of first network communication(for example, LTE communication) to be a first value 1602 and mayconfigure the transmission intensity of second network communication(for example, NR communication) to be a first value 1601. The electronicdevice 101 may identify the cumulative SAR 1631.

According to various embodiments, the electronic device 101 may identifywhether a backoff condition corresponding to the second networkcommunication is satisfied, in operation 1503. The electronic device 101may differently configure a backoff condition corresponding to the firstnetwork communication and a backoff condition corresponding to thesecond network communication, and may preferentially identify whetherthe backoff condition corresponding to the second network is satisfied.As described above, the electronic device 101 may be configured to firstback off the network communication determined according to the priority,and it will be assumed in the description of the embodiment that thesecond network communication is first backed off.

It has been described with reference to FIG. 9D that the electronicdevice 101 may determine whether to perform a backoff, according towhether the total sum of the cumulative SAR value (for example, D1 inFIG. 9D) corresponding to at least one past time, the maximum SAR value(for example, D2 in FIG. 9D) corresponding to the current timepoint, andthe sum of backoff SARs (for example, D3 in FIG. 9D) of the secondnetwork communication (NR communication) at future timepoints exceed athreshold (for example, Th in FIG. 9D). According to variousembodiments, in order to determine whether to perform a preferentialbackoff of specific network communication (for example, second networkcommunication), the electronic device 101 may further consider the SARmargin value of network communication configured to be backed offrelatively later. The SAR margin regarding specific networkcommunication may refer, for example, to a SAR value predicted to beconsumed by the corresponding network communication. For example, theLTE SAR margin may refer, for example, to the amount of marginconfigured such that, after NR communication is backed off at thecurrent timepoint, in the case of a specific table, LTE communication isnot backed off during future timepoints within the table. According tovarious embodiments, the LTE SAR margin may be configured as the samevalue (for example, 2 mW/g) for all tables. The LTE SAR margin may beconfigured to be proportional to the remaining time in the correspondingtable, for example, the number of future timepoints in each table. Forexample, electronic device 101 may configure the LTE SAR margin 1701 asin FIG. 17, for example. The y-axis in FIG. 17 may be a SAR per time,the unit of which may be (mW/g)/sec, for example. Use of LTEcommunication per unit time may result in a SAR of H1-H2 (for example,0.2 mW/g). Accordingly, the LTE SAR margin may be configured as(H1-H2)*t1 for the table regarding the case in which the remaining timeis t1, and the LTE SAR margin may be configured as (H1-H2)*t2 for thetable regarding the case in which the remaining time is t2.

According to various embodiments, in order to determine whether to backoff second network communication (for example, NR communication), theelectronic device 101 may identify whether the sum of the cumulative SARvalue 961 (for example, D1) at least one past timepoint in a specifictable, the maximum SAR value 962 (for example, D2) at the currenttimepoint, the predicted SAR value 963 (for example, D3) at least onefuture timepoint, and the LTE SAR margin 965 (for example, D6) exceeds athreshold cumulative value (for example, Th). For example, if the LTESAR margin 1701 is configured as an amount obtained by multiplying 0.2mW/g by the remaining time, determining whether to back off in the caseof Table 2 will be described. In Table 2, the table having 0.5 secondSAR information has a remaining time of 49.5 seconds, and the LTE SARmargin may be configured to be 0.2*(49.5−0.5), which is 9.8 mW/g. Forexample, the table having 40 second SAR information has a remaining timeof 10 seconds, and the LTE SAR margin may be configured to be0.2*(10.5−0.5)=1.9 mW/g. For example, the table having 49.5 second SARinformation has a remaining time of 0.5 seconds, and the LTE SAR marginmay be configured to be 0.2*(0.5−0.5)=0 mW/g. The maximum transmissionpower may be used for both LTE communication and NR communication, andthe transmission intensity of NR communication may not be backed off dueto the cumulative SAR in this case.

According to various embodiments, if it is identified that the backoffcondition corresponding to the second network communication (forexample, NR communication) is not satisfied (No in operation 1503), theelectronic device 101 may transmit the first communication signal andthe second communication signal with a configured signal intensity inoperation 1505. For example, in the first time interval (t<t1) in FIG.16, the electronic device 101 may maintain the transmission intensity ofthe first network communication (for example, LTE communication), whichis configured as the second value 1602, and may maintain thetransmission intensity of the second network communication (for example,NR communication), which is configured as the first value 1601.

According to various embodiments, if it is identified that the backoffcondition corresponding to the second network communication (forexample, NR communication) is satisfied (Yes in operation 1503), theelectronic device 101 may back off the transmission intensity of thecommunication signal of the second network communication (for example,NR communication) in operation 1507. For example, as in FIG. 16, theelectronic device 101 may identify that the backoff conditioncorresponding to the second network communication is satisfied at thefirst timepoint t1. In various embodiments, the electronic device 101may identify whether to back off the second network communication, basedon the cumulative SAR value at least one past timepoint, and may detect,for example, that D1+D2+D3+D6 exceeds the threshold value (Th). Theelectronic device 101 may back off the transmission intensity of thesecond network communication (for example, NR communication) to a fourthvalue 1604. Moreover, the electronic device 101 may maintain thetransmission intensity of the first network communication (for example,LTE communication) as the second value 1602. Accordingly, the cumulativeSAR 1632 may have a decreasing rate of change, starting from S1. Theelectronic device 101 may determine to back off the second networkcommunication (for example, NR communication) if it is identifiedwhether D1+D2+D3 exceeds NR SAR LIMIT 1610, for example. As describeabove, LTE communication may also have a relatively large transmissionintensity by limiting the average SAR, and data transmission/receptionby the user plane may accordingly be performed stably.

According to various embodiments, after backing off the second networkcommunication (for example, NR communication), the electronic device 101may identify whether the backoff condition corresponding to the firstnetwork communication is satisfied, in operation 1509. If it isidentified that the backoff condition corresponding to the first networkcommunication is not satisfied (No in operation 1509), the electronicdevice 101 may transmit the second communication signal with thebacked-off signal intensity in operation 1511, and may transmit thefirst communication signal with a configured signal intensity. Forexample, as in the second time interval (t1≤t≤t2) in FIG. 16, theelectronic device 101 may maintain the transmission intensity of thesecond value 1602 with regard to the first communication signal and maymaintain the transmission intensity of the fourth value 1604 with regardto the second communication signal. If it is identified that the backoffcondition corresponding to the first network communication is satisfied(Yes in operation 1509), the electronic device 101 may back off thetransmission intensity of the first communication signal in operation1513. For example, the electronic device 101 may determine whether toback off the first network communication, based on whether the backoffcondition (for example, D1+D2+D3>Th) regarding the first networkcommunication (for example, LTE communication) is satisfied. Forexample, as in the third time interval (t2≤t) in FIG. 16, the electronicdevice 101 may back off the intensity of the first communication signalto the third value 1603. The cumulative SAR 1633 may have a decreasingrate of change, starting from S2. Although the electronic device 101 isillustrated as additionally backing off the second network communication(for example, NR communication) to the fifth value 1605, this is only anexample, and the electronic device 101 may maintain the transmissionintensity of the second communication signal at the fourth value 1604.

Meanwhile, the above assumption that the first network communication isLTE communication and the second network communication is NRcommunication is simply an example, and the combination of the firstnetwork communication and the second network communication is notlimited. The combination of the first network communication and thesecond network communication may include, for example, a combination ofan anchor NR communication and non-anchor NR communication. Variousembodiments may be applied to a case in which sub-6 NR communication (asanchor NR communication) and mmWave communication (as non-anchor NRcommunication) operate in a non-standalone (NSA) type. The combinationof the first network communication and the second network communicationmay include, for example, a combination of NR communication of SA-URLLCand NR communication of SA-eMBB. Various embodiments may be applied to acase in which both types of communication operate in a standalone (SA)type, but one side provides a URLLC service. A person skilled in the artwould understand that, in various embodiments, the combination of LTE/NRis not limited in all cases in which two or more types of networkcommunication are used, and various embodiments are applicable tovarious combinations besides the above-mentioned combinations.

FIG. 18A is a flowchart illustrating an example method for operating anelectronic device according to various embodiments, and FIG. 18B is aflowchart illustrating an example method for operating an electronicdevice according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may calculate the SAR value of power transmitted via LTEcommunication and NR communication during the last cycle, in operation1801. The electronic device 101 may identify an cumulative SAR value atleast one past timepoint, for example. In operation 1802, the electronicdevice 101 may identify whether an LTE VoLTE call is being performed. Ifit is identified that the LTE VoLTE call is not performed (No inoperation 1802), the electronic device 101 may identify whether abackoff of NR communication is necessary under a first condition, inoperation 1803. If it is identified that the LTE VoLTE call is performed(Yes in operation 1802), the electronic device 101 may identify whethera backoff of NR communication is necessary under a second condition, inoperation 1809 of FIG. 18B. According to various embodiments, theelectronic device 101 may apply a different condition (for example,first condition or second condition) to the backoff of NR communication,according to whether VoLTE is being performed. The LTE SAR margin fordetermining whether to backoff NR communication has already beendescribed with reference to FIG. 15, FIG. 16, and FIG. 17. In variousembodiments, the first condition corresponding to a case in which VoLTEis not being performed may be related to whether the sum of thecumulative SAR value (for example, 961 in FIG. 17) (for example, D1) atleast one past timepoint in the case of a specific table, the maximumSAR value (for example, 962 in FIG. 17) (for example, D2) at the currenttimepoint, the predicted SAR value (for example, 963 in FIG. 17) (forexample, D3) at a least one future timepoint, and the LTE SAR margin(for example, 964 in FIG. 17) (for example, D6) exceeds the thresholdcumulative value (for example, Th). Meanwhile, if VoLTE is beingperformed, a SAR margin regarding VoLTE may be assigned, in order toperform VoLTE stably. The SAR margin of VoLTE may be configured to belarger than the LTE SAR margin, for example. The SAR margin may differdepending on whether VoLTE is performed, and the first and secondcondition may accordingly differ from each other. The difference inmargin will be described in greater detail below with reference to FIG.19B.

According to various embodiments, if it is determined that no backoffregarding NR communication is necessary under the first condition (No inoperation 1803), the electronic device 101 may transmit a communicationsignal with NR normal power, for example, a value equal to/less than themaximum transmission power allowed for NR communication with no backoff,in operation 1804. If it is determined that NR backoff is necessaryunder the first condition (Yes in operation 1803), the electronic device101 may perform a backoff with regard to NR communication in operation1805. After performing a backoff with regard to NR communication, theelectronic device 101 may identify whether a backoff regarding LTEcommunication is necessary in operation 1806. The electronic device 101may identify whether a backoff regarding LTE communication is necessary,based on whether the sum of the cumulative SAR value (for example, 961in FIG. 9D) (for example, D1) at least one past timepoint in the case ofa specific table, for example, the maximum SAR value (for example, 962in FIG. 9D) (for example, D2) at the current timepoint, and thepredicted SAR value (for example, 963 in FIG. 9D) (for example, D3) at aleast one future timepoint exceeds the threshold cumulative value (forexample, SAR limit). If it is identified that a backoff regarding LTEcommunication is necessary (Yes in operation 1806), the electronicdevice 101 may perform a backoff regarding LTE communication inoperation 1807. If it is identified that no backoff regarding LTEcommunication is necessary (No in operation 1806), the electronic device101 may perform LTE normal power transmission in operation 1808.

According to various embodiments, if it is identified that VoLTE isbeing performed, the electronic device 101 may identify whether abackoff regarding NR communication is necessary under a secondcondition, in operation 1809. The second condition may includeinformation regarding the SAR margin regarding VoLTE, for example, andthis will be described in greater detail below with reference to FIG.19B. If it is identified that no backoff regarding NR communication isnecessary under the second condition (No in operation 1809), theelectronic device 101 may perform normal NR power transmission inoperation 1810. If it is identified that a backoff regarding NRcommunication is necessary under the second condition (Yes in operation1809), the electronic device 101 may perform a backoff with regard tothe NR communication in operation 1811. After performing a backoff withregard to the NR communication, the electronic device 101 may identifywhether a backoff regarding LTE communication is necessary in operation1812. The condition for identifying whether a backoff regarding LTEcommunication is necessary in operation 1812 may be configuredidentically or similarly to the condition for identifying whether abackoff regarding LTE communication is necessary in operation 1806. Ifit is identified that a backoff regarding LTE communication is necessary(Yes in operation 1812), the electronic device 101 may perform a backoffregarding LTE communication in operation 1813. If it is identified thatno backoff regarding LTE communication is necessary (No in operation1812), the electronic device 101 may perform LTE VoLTE normal powertransmission in operation 1814. For example, the LTE VoLTE normal powermay be configured to be larger than LTE normal power.

FIG. 19A is a diagram illustrating example backoff when an electronicdevice according to various embodiments performs VoLTE. FIG. 19B is adiagram illustrating an example LTE SAR margin and a VoLTE SAR marginaccording to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may configure the transmission intensity of first networkcommunication (for example, LTE communication) to be a second value 1902in the first time interval (t<t1), and may configure the transmissionintensity of second network communication (for example, NRcommunication) to be a first value 1901. The first value 1901 and thesecond value 1902 may be transmission intensities that are not backedoff. The LTE transmission intensity when VoLTE is performed may belarger than the LTE transmission intensity when VoLTE is not performed,for example, but may be equal to or smaller than the same, depending onthe manner of implementation. The cumulative SAR 1931 may increase at afirst rate of increase in the first time interval (t<t1). It will beassumed in the description with reference to FIG. 19A that theelectronic device 101 is performing VoLTE. The electronic device 101 mayidentify whether to back off the second network communication (forexample, NR communication) while performing VoLTE. For example, theelectronic device 101 may identify whether a backoff condition issatisfied in view of the VoLTE SAR margin. Referring to FIG. 19B,(H1-H3)*t1 may be the VoLTE SAR margin 1972 with regard to a table at atimepoint at which the remaining time is t1, and this may be larger thanthe LTE SAR margin 1971 of (H1-H2)*t2. For example, (H1-H3) may be 0.3(mW/g)sec. The margin may be proportional to the remaining time, but maybe configured as the same value for all tables, as described above.

As described above, a communication signal may need to be produced witha transmission intensity having a relatively high value, in order tostably perform VoLTE, and this may result in consumption of a SAR havinga relatively high value. Alternatively, in order to provide a servicestably, the electronic device 101 may operate such that the transmissionintensity prior to the backoff is maintained as long as possible. Theelectronic device 101 may secure a SAR margin for VoLTE such that, inorder to observe SAR regulations, the transmission intensity of thecommunication signal for VoLTE is not reduced. Accordingly, with regardto another type of network communication (for example, NRcommunication), whether to perform a backoff may be determined withreference to a value obtained by subtracting the VoLTE SAR margin fromthe threshold cumulative value (SAR Limit).

According to various embodiments, the electronic device 101 may identifythat a backoff of the NR communication is requested at the firsttimepoint t1. The electronic device 101 may identify whether the sum ofthe cumulative SAR value 1961 (for example, D1) at least one pasttimepoint in the case of a specific table 1960 as in FIG. 19B, forexample, the maximum SAR value 1962 (for example, D2) at the currenttimepoint, the predicted SAR value 1963 (for example, D3) at a least onefuture timepoint, and the VoLTE SAR margin 1965 (for example, D7)exceeds the threshold cumulative value (for example, Th). If it isidentified that D1+D2+D3+D7 exceeds the threshold cumulative value (Th),the electronic device 101 may identify that the NR communication is tobe backed off while performing VoLTE. While maintaining the LTE power atthe second value 1902, the electronic device 101 may back off the NRpower from the first value 1901 to the fourth value 1904. The cumulativeSAR value 1932 may increase from the value of S3 at a second rate ofincrease. The cumulative SAR (D3) that is backed off when VoLTE is beingperformed in FIG. 19 may be smaller than the cumulative SAR (S1) thathas been backed off when LTE is being performed in FIG. 16, and this mayresult from the fact that the VoLTE SAR margin is larger than the LTESAR margin. The electronic device 101 may later identify that thebackoff condition of LTE power is satisfied at the second timepoint(t2). The electronic device 101 may back off the LTE power from thesecond value 1902 to the third value 1903. Although the electronicdevice 101 is illustrated in the embodiment of FIG. 19A as additionallybacking off the NR power from the fourth value 1094 to the fifth value1905 together with a backoff of the LTE power, this is merely anexample, and the electronic device 101 may also maintain the NR power atthe fourth value 1904. The electronic device 101 may increase thecumulative SAR 1933 at a third rate of increase with reference to thepoint of S4, for example.

FIG. 20 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a first cumulative SAR value resulting fromradiation of a first communication signal corresponding to first networkcommunication and a second cumulative SAR value resulting from radiationof a communication signal corresponding to second network communication,in operation 2001. The electronic device 101 may determine whether toconduct a backoff according to whether the first cumulative SAR valueand the second cumulative SAR value satisfy a first condition, inoperation 2003. The electronic device 101 may detect a SAR event changein operation 2005. If a SAR event is changed, at least one of themaximum transmission power for each type of network communication, thebackoff power, or the threshold cumulative value (SAR limit) may bechanged, for example. The electronic device 101 may determine whether toconduct a backoff according to whether the first cumulative SAR valueand the second cumulative SAR value satisfy a second condition, inoperation 2007. For example, the second condition may be based on atleast one of the changed maximum transmission power for each type ofnetwork communication, the changed backoff power, or the changedthreshold cumulative value (SAR limit). According to variousembodiments, the electronic device 101 may manage such that a SAR of 1.5mW/g occurs per unit time with regard to a transmission intensity of 24dBm, in connection with a grip event in a band of LTE B7, for example,and may manage such that a SAR of 1.2 mW/g occurs per unit time withregard to a transmission intensity of 24 dBm, in connection with aproximity event. If the SAR event has changed from a proximity event toa grip event, the electronic device 101 may not update existing tables,and may determine whether to conduct a backoff using a SAR valuecorresponding to the proximity event. The electronic device 101 maydetermine whether to conduct a backoff using a smaller value between SARvalues (for example, 1.5 mW/g or 1.2 mW/g) before/after the change.

FIG. 21 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may perform first network communication in operation2101. For example, the electronic device 101 may perform LTEcommunication with a base station (BS) of LTE. The electronic device 101may acquire a signal intensity report condition from a BS correspondingto second network communication in operation 2103. For example, theelectronic device 101 may receive an RRC connection reconfigurationmessage from the BS of LTE, and the RRC connection reconfigurationmessage may include a report condition resulting from an NR-B1 event.The electronic device 101 may configure a report condition resultingfrom the NR-B1 event, based on the RRC connection reconfigurationmessage. The report condition may be configured such that, in a casethat the intensity of a signal from a neighbor cell of second networkcommunication (for example, NR communication) exceeds a threshold, forexample, information regarding the signal intensity is reported to theBS of LTE, which is a master node. Upon receiving the report, the masternode may perform SN addition, and may transmit an RRC connectionreconfiguration message regarding the SN addition to the electronicdevice 101. The electronic device 101 may perform a RACH with thesecondary node (SN) corresponding to the second network communication,based on the received RRC connection reconfiguration message.

According to various embodiments, the electronic device 101 may identifythat the intensity of a signal from the first BS, among at least one BScorresponding to the second network communication, satisfies the reportcondition in operation 2105. Instead of immediately reporting themeasurement result to the master node, the electronic device 101 mayidentify whether the predicted cumulative SAR exceeds a thresholdcumulative value, when second network communication is performed, inoperation 2107. If it is predicted that the predicted cumulative SARwill not exceed the threshold cumulative value (No in operation 2107),the electronic device 101 may report the intensity of the signal fromthe first BS to the master node in operation 2109. Thereafter, if an RRCconnection reconfiguration message regarding SN addition is receivedfrom the master node, the electronic device 101 may perform a RACH withthe corresponding SN. If it is predicted that the predicted cumulativeSAR will exceed the threshold cumulative value (Yes in operation 2107),the electronic device 101 may not report the intensity of the signalfrom the first BS in operation 2111. Accordingly, if a backoff of thesecond network communication is predicted due to limitation of thecumulative SAR (or average SAR), the SN addition procedure may beomitted to prevent and/or reduce unnecessary power consumption.

FIG. 22 is a diagram illustrating an example amount of used SAR and amargin according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may identify a condition to report information regardingmeasurement of the reception intensity of a communication signal from aBS of a second network communication, as described with reference toFIG. 21. Moreover, it will be assumed that the communication signal fromthe first BS of the second network communication satisfies thecondition. Referring to FIG. 22, the electronic device 101 may identifyan cumulative SAR value 2201 (for example, D1) at a past timepoint,which corresponds to the amount of SAR used to the present, with regardto a specific table 2200. The electronic device 101 may identify apredicted amount of use 2203 (for example, D7) during an LTE backoff ata remaining future timepoint, and a predicted amount of use 2204 (D8)during an NR backoff at a remaining future timepoint. The electronicdevice 101 may identify the amount of use 2203 during an LTE backoff andthe amount of use 2204 during an NR backoff, for example, as temporaryfixed values, or may identify the same based on the remaining time. Theelectronic device 101 may identify, in the case of FIG. 22, that thesummation (for example, D1+D2+D7+D8) of the cumulative SAR value 2201(for example, DO at a past timepoint, the maximum SAR value 2202 (forexample, D2) at the current timepoint, the predicted amount of use 2203(for example, D7) during an LTE backoff, and the predicted amount of use2204 (for example, D8) during an NR backoff exceeds a thresholdcumulative value (SAR limit) (Th). The electronic device 101 may notperform the measurement report regarding the first BS, based onidentifying that the summation exceeds the threshold cumulative value(SAR limit).

FIG. 23 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments. FIG. 23 will bedescribed with reference to FIG. 24. FIG. 24 is a diagram illustratingan example identified amount of used SAR according to variousembodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may perform LTE communication in operation 2301. Theelectronic device 101 may perform a Wi-Fi hot spot function in operation2303. For example, the electronic device 101 may perform the Wi-Fi hotspot function based on a user input. According to various examples, theWi-Fi hot spot function may pertain to a function performed by theelectronic device 101 to share an external data communication connectionof the electronic device 101 with another electronic device (notillustrated) via Wi-Fi. The electronic device 101 may identify whether abackoff is requested in operation 2305. For example, the electronicdevice 101 may identify, as in FIG. 24, the summation (for example,D1+D2+D9+D10) of the cumulative SAR value 2401 (for example, D1) used ata past timepoint, with regard to a specific table 2400, the currentmaximum SAR 2402 (for example, D2), the amount of predicted SAR use 2403(for example, D9) when using the hot spot at a remaining futuretimepoint, and the amount of predicted SAR use 2404 (for example, D10)when using data communication (for example, LTE communication and/or NRcommunication) at a remaining future timepoint. The electronic device101 may identify whether a backoff is requested, based on whether thesummation exceeds the threshold cumulative value (SAR limit) (Th).

According to various embodiments, if it is identified that a backoff isrequested (Yes in operation 2305), the electronic device 101 may limitthe Wi-Fi power in operation 2307. The electronic device 101 may returnthe SAR, which is allowed to additionally occur after use for the Wi-Fi,such that the same is used for LTE or NR communication. If it isidentified that no backoff is requested (No in operation 2305), theelectronic device 101 may not limit the Wi-Fi power, and may return theSAR, which is allowed to additionally occur after use for the Wi-Fi,such that the same is used for LTE or NR communication, in operation2311.

According to various embodiments, the electronic device 101 mayconfigure the period for calculating the cumulative (or average) SAR ofWi-Fi to be shorter than the period for calculating the cumulative (oraverage) SAR of LTE and NR. For example, the period for calculating thecumulative SAR of Wi-Fi may be configured to be 10 seconds, and periodfor calculating the cumulative SAR of LTE and NR may be configured to be50 seconds. The electronic device 101 may return the SAR, which remainsafter being used in the Wi-Fi, and which is allowed to additionallyoccur, at each cycle (for example, 10 seconds) of the Wi-Fi such thatthe same can be used for LTE and NR communication. For example, in thecase of tables having at least 10 seconds of remaining time (forexample, if the table size is 50 seconds, tables having at least 10seconds of periods corresponding to future timepoints), among thetables, a Wi-Fi margin of the SAR limit value (for example, 4 mW/g) ofWi-Fi may need to be secured additionally. Moreover, in the case of atable having less than 10 seconds of remaining time, among the tables, avalue obtained by multiplying the maximum amount of Wi-Fi use per second(for example, 0.5 mW) by the remaining time needs to be secured as theWi-Fi margin, but the maximum value thereof may be the SAR limit valueof Wi-Fi. As an example, in the case of a table having one second ofremaining time, the result value of 0.5 mW*1 second, which is 0.5 mW,may be required as the Wi-Fi margin. In the case of a table having threeseconds of remaining time, the result value of 0.5 mW*3 seconds, whichis 1.5 mW, may be required as the Wi-Fi margin. In the case of a tablehaving nine seconds of remaining time, the result value of 0.5 mW*5seconds+0.5 mW*3 seconds, which is 3.7 mW, may be required as the Wi-Fimargin. The reason why thee seconds are multiplied by 0.3 mW in the caseof the nine-second table may be for the purpose of satisfying themaximum SAR value of ten seconds, which is 4 mW. After ten seconds arecompleted, the electronic device 101 may identify the SAR which remainsin the Wi-Fi, and which is allowed to additionally occur, and may returnthe same to be used for LTE and NR communication.

According to various embodiments, the electronic device 101 may return aSAR which remains after being consumed by Wi-Fi during past 20 secondsor past 10 seconds, and which is allowed to additionally occur, when atimepoint (for example, 20 seconds (which is 10 seconds times two))larger than 10 seconds is completed, not when 10 seconds is completed,such that the same is used for LTE and NR communication. In this case,it may be guaranteed in the time interval of a past 20 seconds or past10 seconds that a value within the threshold cumulative value (SARlimit) (for example, 4 mW), during 10 seconds, is used by the Wi-Fimodule. The electronic device 101 may return the SAR which remains inthe corresponding interval, and which is allowed to additionally occur,such that the same is used for LTE and NR communication with no otherlimitations.

According to various embodiments, the electronic device 101 may controlthe Wi-Fi so as to operate with the maximum power. If the amount of useis smaller than the SAR predicted to be used in real time in this case,the remaining SAR which is allowed to additionally occur may be returnedsuch that the same is used for LTE and NR communication.

FIG. 25 is a flowchart illustrating an example method for operating anelectronic device according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may initiate VoLTE in operation 2501. The electronicdevice 101 may identify whether background data limitation is requested,in operation 2503. For example, the electronic device 101 may identify,with regard to a specific table, the summation of an cumulative SARvalue used at a past timepoint, a maximum SAR value at the currenttimepoint, and a value of use of SAR, which is predicted to be used at afuture timepoint when background data is transmitted. The electronicdevice 101 may identify whether background data limitation is requestedat the current timepoint, based on whether the summation exceeds athreshold cumulative value (SAR limit). If it is identified that nobackground data limitation is requested (No in operation 2503), theelectronic device 101 may continuously perform VoLTE in operation 2507.In this case, transmission of the background data to a base station maybe maintained. If it is identified that background data limitation isrequested (Yes in operation 2503), the electronic device 101 may limitthe background data in operation 2505. In the case of backoff maximumpower (for example, reserved power operation interval), background datamay be transmitted from the electronic device 101 to the base station.Moreover, the SAR may be consumed by transmission of background data. Ifthe background data transmission is limited, SAR consumption caused bythe transmission may not occur, and the electronic device 101 may usethe portion of SAR that has not been consumed as the SAR margin.Addition of the SAR margin may enable the electronic device 101 tofurther delay the backoff timepoint while maintaining the transmissionintensity of LTE communication. Addition of the SAR margin may enablethe electronic device 101 to increase the transmission intensity of LTEcommunication while maintaining the same usage time.

FIG. 26A is a diagram illustrating example backoff based onconsideration of an cumulative SAR according to various embodiments.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may configure the transmission intensity of LTEcommunication to be a first value 2611 (for example, 24dM) in the firsttime period (t<t1). During the first time period (t<t1), the cumulativeSAR 2601 may increase at a first rate of increase. At the firsttimepoint (t1), the electronic device 101 may identify that a backoff isrequested. The electronic device 101 may back off the transmissionintensity of LTE communication to a second value 2612 (for example, 22dBm). In the second time period (t1<t), the cumulative SAR 2602 mayincrease at a second rate of increase. It will be assumed that theelectronic device 101 uses a bandwidth of 20 MHz in order to transmitbackground data and data caused by VoLTE. Moreover, the electronicdevice 101 may use a bandwidth (for example, 1.6 MHz or 5 MHz) smallerthan normally used bandwidths, when background data transmission islimited. After the first timepoint (t1), a first SAR margin resultingfrom use of a bandwidth of 5 MHz, not 20 Mhz, and a second SAR marginresulting from a backoff to the second value (for example, 22 dBm) maybe secured. The electronic device 101 may use the secured SAR margins todelay the backoff timepoint or to maintain the transmission intensity.Referring to FIG. 26B, the electronic device 101 may maintain theintensity of the communication signal at the first value 2611 until thesecond timepoint (t2), which comes later than the first timepoint (t1),using the secured SAR margin, and may perform a backoff at the secondtimepoint (t2). The cumulative SAR 2631 may increase at a first rate ofincrease before the second timepoint (t2), and the cumulative SAR 2632may increase at a second rate of increase after the second timepoint(t2). Accordingly, the transmission intensity of VoLTE may be maintainedrelatively longer, thereby improving the stability. Referring to FIG.26C, the electronic device 101 may use the secure SAR margin to maintainthe intensity of the communication signal at the first value 2611. Thecumulative SAR 2641 may increase at a first rate of increase before thefirst timepoint (t1), and the cumulative SAR 2642 may increase at athird rate of increase after the first timepoint (t1).

FIG. 27A is a diagram illustrating an example configuration of thetransmission intensity of a communication signal by an electronic deviceaccording to various embodiments. Physical components and/or logicalcomponents illustrated in at least one of FIG. 27A, 27B, 27C, 27D andFIG. 27E are not limited, may be omitted, or may be implemented suchthat other components are added.

According to various embodiments, the electronic device 101 (forexample, at least one of processor 120, first communication processor212, second communication processor 214, or combined communicationprocessor 260) may perform first baseband processing 410 and secondbaseband processing 420. It may be understood that the first basebandprocessing 410 is performed by the first communication processor 212,for example, or represents the first communication processor 212. It maybe understood that the second baseband processing 420 is performed bythe second communication processor 214, for example, or represents thesecond communication processor 214. Referring to the first basebandprocessing 410, the maximum transmission power manager 411 may determinethe maximum transmission power of a communication signal to betransmitted and may deliver the same to the power transmissioncontroller 413. For example, referring to FIG. 27A and FIG. 27B, themaximum transmission power manager 411 may determine that minimum power444 among normal maximum power 441, SAR event maximum power 443, andmaximum power from the SAR manager 415 is the maximum transmission powervalue. The SAR manager 415 may deliver information regarding maximumpower for satisfying a condition associated with an cumulative SAR (oraverage SAR) to at least one of the maximum transmission power manager411 inside the first baseband processing 410 or the maximum transmissionpower manager 421 inside the second baseband processing 420. The SARevent maximum power 443 may output information regarding a maximum powervalue corresponding to a SAR event (for example, grip event, proximityevent, or hot spot event) identified from the event manager 442, forexample. The normal maximum power 441 may represent a power valueallowed in the normal state of the electronic device 101.

According to various embodiments, the transmission power controller 413may identify information regarding maximum transmission power from themaximum transmission power manager 411, and may identify (412)information regarding transmission power requested by the network or UE(for example, electronic device 101). The transmission power controller413 may determine transmission power based on the identifiedinformation. The transmission power controller 413 may configureparameters of a power amplifier bias and/or an RF gain, with referenceto a transmission power table 414. Information regarding the parameterconfiguration may be delivered to the RF front-end device 433 of thefirst network communication, for example, and used for parameterconfiguration. The RF front-end device 433 may be a separate hardwaremodule. The coupler 434 may perform a feedback for adjusting thetransmitted power. Meanwhile, descriptions of the maximum transmissionpower manager 421, the process of identifying (422) requested power, thetransmission power controller 423, the transmission power table 424, theRF front-end device 431, and the coupler 432 inside the second basebandprocessing 420 may be similar to descriptions of components with thesame names inside the first baseband processing 420, the RF front-enddevice 433, and the coupler 434.

Referring to FIG. 27C, the SAR manager 415 may identify the maximumvalue 465 of the current SAR, based on the SAR event identified from theevent manager 442. Moreover, the SAR manager 415 may calculate (462) theSAR predicted when the corresponding power is transmitted, based on thecurrent target TX power 461. The SAR manager 415 may calculate themaximum SAR value 463 based on the current SAR maximum value 465 and thecalculated SAR 462, and may identify maximum transmission power 464corresponding thereto. After the maximum transmission power 474 isidentified, the SAR manager 415 may deliver the same to the maximumtransmission power manager (for example, maximum transmission powermanager 421). Moreover, the maximum transmission power controller 467(for example, LTE maximum power controller) inside the SAR manager 415may deliver information regarding the maximum transmission power to themaximum transmission power manager 411, based on whether a heterogenousconnection is established (466) (for example, whether NR connection isestablished).

It can be understood from the illustration in FIG. 27D that LTE and NRtransmission power may be determined in one baseband processing 470. Thebaseband processing 470 may be performed by the combined communicationprocessor 260 in FIG. 2B, for example, or may represent the combinedcommunication processor 260. The LTE/NR SAR manager 477 may deliverinformation regarding transmission power determined based on ancumulative SAR (or average SAR) to the LTE maximum transmission powermanager 471 and/or the NR maximum transmission power manager 478. TheLTE maximum transmission power manager 471 may determine the smallestvalue among information regarding power received from the LTE/NR SARmanager 477, information regarding power corresponding to a SAR event,and normal maximum transmission power, and may deliver the same to theLTE communication power controller 473. The LTE communication powercontroller 473 may identify transmission power in view of informationregarding power 472 required by the network of LTE or the UE. The LTEcommunication power controller 473 may identify a parameter for theidentified transmission power in view of the LTE power table 474, andmay deliver information regarding the identified parameter to the LTEfront-end device 476. The LTE communication power controller 473 mayshare information regarding the identified transmission power with theLTE/NR SAR manager 477. The LTE front-end device 476 may operateaccording to the received parameter, and the coupler 475 may feedback atleast a part of transmission power to the baseband processing 470. TheNR maximum transmission power manager 478 may determine the smallestvalue among information regarding power received from the LTE/NR SARmanager 477, information regarding power corresponding to a SAR event,and normal maximum transmission power, and may deliver the same to theNR communication power controller 480. The NR communication powercontroller 480 may identify transmission power in view of informationregarding power 479 required by the network of NR or the UE. The NRcommunication power controller 480 may identify a parameter for theidentified transmission power in view of the NR power table 481, and maydeliver information regarding the identified parameter to the NRfront-end device 482. The NR communication power controller 482 mayshare information regarding the identified transmission power with theLTE/NR SAR manager 477. The NR front-end device 482 may operateaccording to the received parameter, and the coupler 483 may feedback atleast a part of transmission power to the baseband processing 470.

Referring to FIG. 27E, the LTE/NR manager 477 may identify LTE currenttarget transmission power 490 and NR current target transmission power480, and may calculate SAR tables 489 and 491 corresponding thereto,respectively. The LTE/NR manager 477 may summate (492) currenttransmission SARs based on the SAR tables 489 and 491, and may determine(487) whether to conduct a backoff, based thereon. The LTE/NR manager477 may determine whether to conduct a backoff, based on the maximum SARvalue 486 and/or the NR connection mode 493. Determination 487 regardingwhether to conduct a backoff may be delivered to the LTE maximumtransmission power manager 471 and/or the NR maximum transmission powermanager 478. Meanwhile, the Wi-Fi module 484 may transmit/receiveinformation regarding power or SAR consumption with the AP or CP. SARevents, Wi-Fi power, and events 485 of used SAR information may be usedto determine the maximum SAR value 486.

According to various example embodiments, an electronic device mayinclude: at least one antenna; and at least one communication processorconfigured to support first network communication with a first networkand second network communication with a second network different fromthe first network. The at least one communication processor may beconfigured to: identify a first cumulative SAR value based on radiationof a communication signal corresponding to the first networkcommunication via a first part of the at least one antenna and a secondcumulative SAR value based on radiation of a communication signalcorresponding to the second network communication via a second part ofthe at least one antenna; and adjust one of a transmission intensity ofa first communication signal corresponding to the first networkcommunication or a transmission intensity of a second communicationsignal corresponding to the second network communication based on adesignated condition satisfied by the first cumulative SAR value and thesecond cumulative SAR value.

According to various example embodiments, the at least one communicationprocessor may be configured to: adjust one of the transmission intensityof the first communication signal or the transmission intensity of thesecond communication signal, based on identifying, based on firstcumulative SAR value and the second cumulative SAR value, that an entirecumulative SAR value during a designated time period at least one futuretimepoint exceeds a threshold cumulative value.

According to various example embodiments, the at least one communicationprocessor may be configured to identify multiple tables includinginformation regarding SAR consumption values during the designated timeperiod, respectively. The multiple tables may correspond to multiplefuture timepoints, respectively. The at least one communicationprocessor may be configured to adjust one of the transmission intensityof the first communication signal or the transmission intensity of thesecond communication signal, based on identifying that there exists atable having a SAR consumption value during the designated time periodexceeding the threshold cumulative value, among the multiple tables.

According to various example embodiments, the at least one communicationprocessor may be configured to: identify, with regard to each of themultiple tables, a summ of a cumulative SAR value regarding at least onepast timepoint included in the multiple tables, a maximum SAR valuecorresponding to a current timepoint, and a predicted SAR valuepredicted to be consumed at least one future timepoint; and identifywhether table having the summation exceeding the threshold cumulativevalue exists.

According to various example embodiments, the at least one communicationprocessor may be configured to: discard an initial table among themultiple tables, based on identifying that a period of a designatedtimer expires; perform an update regarding remaining tables; and producea new table. The remaining tables may be updated by shifting dataregarding included multiple timepoints by the time of the period of thedesignated timer.

According to various example embodiments, the at least one communicationprocessor may be configured to: identify being configured topreferentially back off the second network communication among the firstnetwork communication and the second network communication; andpreferentially back off the transmission intensity of the secondcommunication signal.

According to various example embodiments, the at least one communicationprocessor may be configured to: back off the transmission intensity ofthe second communication signal, based on identifying that a thresholdcumulative value is exceeded by a summation of the first cumulative SARvalue, the second cumulative SAR value, a first predicted SAR valuepredicted to be consumed by the first network communication that is notbacked off, and a second predicted SAR value predicted to be consumed bythe second network communication that is backed off, during a designatedtime period at least one future timepoint.

According to various example embodiments, the at least one communicationprocessor may be configured to: identify whether communication relatedto a designated application is being performed; and determine the firstpredicted SAR value that is predicted to be consumed by the firstnetwork communication based on whether the communication related to thedesignated application is being performed.

According to various example embodiments, the at least one communicationprocessor may be configured to: identify whether communication relatedto a designated application is being performed; and determine the amountof backoff of the second communication based on whether thecommunication related to the designated application is being performed.

According to various example embodiments, the first networkcommunication may be network communication for supporting VoLTE.

According to various example embodiments, the at least one communicationprocessor may be configured to: limit transmission of background datavia the first network communication, based on predicting that an entirecumulative SAR value will exceed a threshold cumulative value bytransmission of the first communication signal for the VoLTE during adesignated time period at least one future timepoint.

According to various example embodiments, the at least one communicationprocessor may be configured to: maintain the transmission intensity ofthe first communication signal for at least a first period, based onlimitation of transmission of the background data.

According to various example embodiments, the at least one communicationprocessor may be configured to: back off the transmission intensity ofthe first communication signal, based on predicting, after backing offthe transmission intensity of the second communication signal, that anentire cumulative SAR value will exceed a threshold cumulative value bytransmission of the first communication signal that is not backed off,during a designated time period at least one future timepoint.

According to various example embodiments, the at least one communicationprocessor may be configured to identify multiple tables includinginformation regarding SAR consumption values during the designated timeperiod, respectively after backing off the transmission intensity of thesecond communication signal. The multiple tables may correspond tomultiple future timepoints, respectively. The at least one communicationprocessor may be configured to back off the transmission intensity ofthe first communication signal, based on identifying that a table havinga SAR consumption value during the designated time period, which exceedsthe threshold cumulative value, among the multiple tables exists.

According to various example embodiments, the at least one communicationprocessor may be configured to maintain or additionally back off thetransmission intensity of the second communication signal, based onbacking off the transmission intensity of the first communicationsignal.

According to various example embodiments, an electronic device mayinclude at least one communication processor configured to support firstnetwork communication with a first network and second networkcommunication with a second network different from the first network.The at least one communication processor may be configured to: receive,from a base station corresponding to the first network communication, areport condition instructing transmission of a communication signal fromat least one peripheral base station corresponding to the second networkcommunication; identify that a communication signal from a first basestation among peripheral base stations corresponding to the secondnetwork communication satisfies the report condition; and identifywhether to perform a measurement report corresponding to the first basestation, based on a first cumulative SAR value resulting from radiationof a communication signal corresponding to the first networkcommunication.

According to various example embodiments, the at least one communicationprocessor may be configured to: perform the first network communicationfor a designated time period at least one future timepoint using thefirst cumulative SAR value and, based on predicting that the amount ofpredicted SAR that is predicted based on the second networkcommunication being performed together exceeding a threshold amount ofaccumulation, not perform the measurement report.

According to various example embodiments, the at least one communicationprocessor may be configured to perform the first network communicationfor a designated time period at least one future timepoint using thefirst cumulative SAR value and, based on predicting that the amount ofpredicted SAR predicted based on the second network communication beingperformed together not exceeding a threshold amount of accumulation,perform the measurement report.

According to various example embodiments, an electronic device mayinclude: at least one antenna; a Wi-Fi communication module comprisingcircuitry configured to perform Wi-Fi communication with an externalelectronic device; and at least one communication processor configuredto support first network communication with a first network and secondnetwork communication with a second network different from the firstnetwork. The at least one communication processor may be configured to:identify a first SAR margin configured in the Wi-Fi communicationmodule, based on activation of a Wi-Fi hot spot function using the Wi-Ficommunication module; identify a first cumulative SAR value based onradiation of a communication signal corresponding to the first networkcommunication via a first part of the at least one antenna and a secondcumulative SAR value based on radiation of a communication signalcorresponding to the second network communication via a second part ofthe at least one antenna; and determine a transmission intensity of thecommunication signal corresponding to the first network communicationand a transmission intensity of the communication signal correspondingto the second network communication, based on the first cumulative SARvalue, the second cumulative SAR value, and the first SAR margin.

According to various example embodiments, the at least one communicationprocessor may be configured to: identify an amount of remaining SAR,corresponding to a difference between an amount of consumed SAR consumedby the Wi-Fi communication module and the first SAR margin, at adesignated cycle; and determine the transmission intensity of thecommunication signal corresponding to the first network communicationand the transmission intensity of the communication signal correspondingto the second network communication, based on the first cumulative SARvalue, the second cumulative SAR value, the first SAR margin, and theamount of remaining SAR.

The electronic device according to various embodiments may be one ofvarious types of electronic devices. The electronic devices may include,for example, a computer device, a portable communication device (e.g., asmartphone), a portable multimedia device, a portable medical device, acamera, a wearable device, a home appliance, or the like. According toan embodiment of the disclosure, the electronic devices are not limitedto those described above.

It should be appreciated that various embodiments of the disclosure andthe terms used therein are not intended to limit the technologicalfeatures set forth herein to particular embodiments and include variouschanges, equivalents, or replacements for a corresponding embodiment.With regard to the description of the drawings, similar referencenumerals may be used to refer to similar or related elements. It is tobe understood that a singular form of a noun corresponding to an itemmay include one or more of the things, unless the relevant contextclearly indicates otherwise. As used herein, each of such phrases as “Aor B,” “at least one of A and B,” “at least one of A or B,” “A, B, orC,” “at least one of A, B, and C,” and “at least one of A, B, or C,” mayinclude any one of, or all possible combinations of the items enumeratedtogether in a corresponding one of the phrases. Such terms as “1st” and“2nd,” or “first” and “second” may be used to simply distinguish acorresponding component from another, and does not limit the componentsin other aspect (e.g., importance or order). It is to be understood thatif an element (e.g., a first element) is referred to, with or withoutthe term “operatively” or “communicatively”, as “coupled with,” “coupledto,” “connected with,” or “connected to” another element (e.g., a secondelement), the element may be coupled with the other element directly(e.g., wiredly), wirelessly, or via a third element.

As used herein, the term “module” may include a unit implemented inhardware, software, or firmware, or any combination thereof, and mayinterchangeably be used with other terms, for example, “logic,” “logicblock,” “part,” or “circuitry”. A module may be a single integralcomponent, or a minimum unit or part thereof, adapted to perform one ormore functions. For example, according to an embodiment, the module maybe implemented in a form of an application-specific integrated circuit(ASIC).

Various embodiments as set forth herein may be implemented as software(e.g., the program) including one or more instructions that are storedin a storage medium (e.g., internal memory or external memory) that isreadable by a machine (e.g., a master device or a task performingdevice). For example, a processor of the machine (e.g., a master deviceor a task performing device) may invoke at least one of the one or moreinstructions stored in the storage medium, and execute it. This allowsthe machine to be operated to perform at least one function according tothe at least one instruction invoked. The one or more instructions mayinclude a code generated by a complier or a code executable by aninterpreter. The machine-readable storage medium may be provided in theform of a non-transitory storage medium. Wherein, the “non-transitory”storage medium is a tangible device, and may not include a signal (e.g.,an electromagnetic wave), but this term does not differentiate betweenwhere data is semi-permanently stored in the storage medium and wherethe data is temporarily stored in the storage medium.

According to an embodiment, a method according to various embodiments ofthe disclosure may be included and provided in a computer programproduct. The computer program product may be traded as a product betweena seller and a buyer. The computer program product may be distributed inthe form of a machine-readable storage medium (e.g., compact disc readonly memory (CD-ROM)), or be distributed (e.g., downloaded or uploaded)online via an application store (e.g., PlayStore™), or between two userdevices (e.g., smart phones) directly. If distributed online, at leastpart of the computer program product may be temporarily generated or atleast temporarily stored in the machine-readable storage medium, such asmemory of the manufacturer's server, a server of the application store,or a relay server.

According to various embodiments, each component (e.g., a module or aprogram) of the above-described components may include a single entityor multiple entities. According to various embodiments, one or more ofthe above-described components may be omitted, or one or more othercomponents may be added. Alternatively or additionally, a plurality ofcomponents (e.g., modules or programs) may be integrated into a singlecomponent. In such a case, the integrated component may still performone or more functions of each of the plurality of components in the sameor similar manner as they are performed by a corresponding one of theplurality of components before the integration. According to variousembodiments, operations performed by the module, the program, or anothercomponent may be carried out sequentially, in parallel, repeatedly, orheuristically, or one or more of the operations may be executed in adifferent order or omitted, or one or more other operations may beadded.

While the disclosure has been illustrated and described with referenceto various example embodiments thereof, it will be understood that thevarious example embodiments are intended to be illustrative, notlimiting. It will further be understood by one of ordinary skill in theart that various changes in form and detail may be made withoutdeparting from the true spirit and full scope of the disclosure,including the appended claims and equivalents thereof.

What is claimed is:
 1. An electronic device comprising: at least oneantenna; and at least one communication processor configured to supportfirst network communication with a first network and second networkcommunication with a second network different from the first network,wherein the at least one communication processor is configured to:identify a first cumulative SAR value based on radiation of acommunication signal corresponding to the first network communicationvia a first part of the at least one antenna and a second cumulative SARvalue based on radiation of a communication signal corresponding to thesecond network communication via a second part of the at least oneantenna; and based on a designated condition being satisfied by thefirst cumulative SAR value and the second cumulative SAR value, adjustone of a transmission intensity of a first communication signalcorresponding to the first network communication or a transmissionintensity of a second communication signal corresponding to the secondnetwork communication.
 2. The electronic device of claim 1, wherein theat least one communication processor is configured to: adjust one of thetransmission intensity of the first communication signal or thetransmission intensity of the second communication signal, based onidentifying, based on first cumulative SAR value and the secondcumulative SAR value, that an entire cumulative SAR value during adesignated time period at least one future timepoint exceeds a thresholdcumulative value.
 3. The electronic device of claim 2, wherein the atleast one communication processor is configured to: identify multipletables comprising information regarding SAR consumption values duringthe designated time period, respectively, the multiple tablescorresponding to multiple future timepoints, respectively; and adjustone of the transmission intensity of the first communication signal orthe transmission intensity of the second communication signal, based onidentifying that a table having a SAR consumption value during thedesignated time period exceeding the threshold cumulative value, amongthe multiple tables exists.
 4. The electronic device of claim 3, whereinthe at least one communication processor is configured to: identify, foreach of the multiple tables, a summation of an cumulative SAR valueregarding at least one past timepoint included in the multiple tables, amaximum SAR value corresponding to a current timepoint, and a predictedSAR value predicted to be consumed at least one future timepoint; andidentify whether a table having the summation exceeding the thresholdcumulative value exists.
 5. The electronic device of claim 3, whereinthe at least one communication processor is configured to: discard aninitial table among the multiple tables, based on identifying that aperiod of a designated timer expires; perform an update regardingremaining tables; and produce a new table, wherein remaining tables areupdated by shifting data regarding included multiple timepoints by thetime of the period of the designated timer.
 6. The electronic device ofclaim 1, wherein the at least one communication processor is configuredto: identify being configured to preferentially back off the secondnetwork communication among the first network communication and thesecond network communication; and preferentially back off thetransmission intensity of the second communication signal.
 7. Theelectronic device of claim 6, wherein the at least one communicationprocessor is configured to: back off the transmission intensity of thesecond communication signal, based on identifying that a thresholdcumulative value is exceeded by a summation of the first cumulative SARvalue, the second cumulative SAR value, a first predicted SAR valuepredicted to be consumed by the first network communication that is notbacked off, and a second predicted SAR value predicted to be consumed bythe second network communication that is backed off, during a designatedtime period at least one future timepoint.
 8. The electronic device ofclaim 7, wherein the at least one communication processor is configuredto: identify whether communication related to a designated applicationis being performed; and determine the first predicted SAR valuepredicted to be consumed by the first network communication based onwhether the communication related to the designated application is beingperformed.
 9. The electronic device of claim 6, wherein the at least onecommunication processor is configured to: identify whether communicationrelated to a designated application is being performed; and determinethe amount of backoff of the second communication based on whether thecommunication related to the designated application is being performed.10. The electronic device of claim 6, wherein the first networkcommunication is network communication supporting VoLTE.
 11. Theelectronic device of claim 10, wherein the at least one communicationprocessor is configured to: limit transmission of background data viathe first network communication, based on predicting that an entirecumulative SAR value will exceed a threshold cumulative value oftransmission of the first communication signal for the VoLTE during adesignated time period at least one future timepoint.
 12. The electronicdevice of claim 11, wherein the at least one communication processor isconfigured to: maintain transmission intensity of the firstcommunication signal for at least a first period, based on limitation oftransmission of the background data.
 13. The electronic device of claim6, wherein the at least one communication processor is configured to:back off the transmission intensity of the first communication signal,based on predicting, after backing off the transmission intensity of thesecond communication signal, that an entire cumulative SAR value willexceed a threshold cumulative value of transmission of the firstcommunication signal that is not backed off, during a designated timeperiod at least one future timepoint.
 14. The electronic device of claim13, wherein the at least one communication processor is configured to:identify multiple tables comprising information regarding SARconsumption values during the designated time period, respectively, themultiple tables corresponding to multiple future timepoints,respectively, after backing off the transmission intensity of the secondcommunication signal; and back off the transmission intensity of thefirst communication signal, based on identifying that a table having aSAR consumption value during the designated time period exceeding thethreshold cumulative value, among the multiple tables exists.
 15. Theelectronic device of claim 13, wherein the at least one communicationprocessor is configured to: maintain or additionally back off thetransmission intensity of the second communication signal, based onbacking off the transmission intensity of the first communicationsignal.
 16. An electronic device comprising: at least one communicationprocessor configured to support first network communication with a firstnetwork and second network communication with a second network differentfrom the first network, wherein the at least one communication processoris configured to: receive, from a base station corresponding to thefirst network communication, a report condition instructing transmissionof a communication signal from at least one peripheral base stationcorresponding to the second network communication; identify that acommunication signal from a first base station among peripheral basestations corresponding to the second network communication satisfies thereport condition; and identify whether to perform a measurement reportcorresponding to the first base station, based on a first cumulative SARvalue based pm radiation of a communication signal corresponding to thefirst network communication.
 17. The electronic device of claim 16,wherein the at least one communication processor is configured to:perform the first network communication for a designated time period atleast one future timepoint using the first cumulative SAR value and,based on predicting that the amount of predicted SAR predicted when thesecond network communication is performed together will exceed athreshold amount of accumulation, not perform the measurement report.18. The electronic device of claim 16, wherein the at least onecommunication processor is configured to: perform the first networkcommunication for a designated time period at least one future timepointusing the first cumulative SAR value and, based on predicting that theamount of predicted SAR predicted when the second network communicationis performed together will not exceed a threshold amount ofaccumulation, perform the measurement report.
 19. An electronic devicecomprising: at least one antenna; a Wi-Fi communication modulecomprising circuitry configured to perform Wi-Fi communication with anexternal electronic device; and at least one communication processorconfigured to support first network communication with a first networkand second network communication with a second network different fromthe first network, wherein the at least one communication processor isconfigured to: identify a first SAR margin configured in the Wi-Ficommunication module, based on activation of a Wi-Fi hot spot functionusing the Wi-Fi communication module; identify a first cumulative SARvalue based on radiation of a communication signal corresponding to thefirst network communication via a first part of the at least one antennaand a second cumulative SAR value based on radiation of a communicationsignal corresponding to the second network communication via a secondpart of the at least one antenna; and determine a transmission intensityof the communication signal corresponding to the first networkcommunication and a transmission intensity of the communication signalcorresponding to the second network communication, based on the firstcumulative SAR value, the second cumulative SAR value, and the first SARmargin.
 20. The electronic device of claim 19, wherein the at least onecommunication processor is configured to: identify an amount ofremaining SAR corresponding to a difference between the amount ofconsumed SAR consumed by the Wi-Fi communication module and the firstSAR margin, at a designated cycle; and determine the transmissionintensity of the communication signal corresponding to the first networkcommunication and the transmission intensity of the communication signalcorresponding to the second network communication, based on the firstcumulative SAR value, the second cumulative SAR value, the first SARmargin, and the amount of remaining SAR.